Home / 72,451.12-99,945.48-48,293.68

Finding the Fourth Proportional to 72,451.12, 99,945.48 and 48,293.68

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Solution

The fourth proportional to 72,451.12, 99,945.48 and 48,293.68 is: 66,620.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,451.12 : 99,945.48 = 48,293.68 : x
  2. Step 2: Convert to fraction form
    72,451.12/99,945.48 = 48,293.68/x
  3. Step 3: Cross multiply
    72,451.12x = 99,945.48 × 48,293.68
  4. Step 4: Simplify right side
    72,451.12x = 4,826,735,028.57
  5. Step 5: Solve for x
    x = 4,826,735,028.57/72,451.12
  6. Step 6: Final answer
    x = 66,620.57

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1.5x scale

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.