Home / 57,120,459.60-78,826,327.56-31,015,027.92

Finding the Fourth Proportional to 57,120,459.60, 78,826,327.56 and 31,015,027.92

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Solution

The fourth proportional to 57,120,459.60, 78,826,327.56 and 31,015,027.92 is: 42,800,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,120,459.60 : 78,826,327.56 = 31,015,027.92 : x
  2. Step 2: Convert to fraction form
    57,120,459.60/78,826,327.56 = 31,015,027.92/x
  3. Step 3: Cross multiply
    57,120,459.60x = 78,826,327.56 × 31,015,027.92
  4. Step 4: Simplify right side
    57,120,459.60x = 2,444,800,750,104,465.50
  5. Step 5: Solve for x
    x = 2,444,800,750,104,465.50/57,120,459.60
  6. Step 6: Final answer
    x = 42,800,789.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.