Home / 72,748.83-100,392.31-40,917.76

Finding the Fourth Proportional to 72,748.83, 100,392.31 and 40,917.76

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Solution

The fourth proportional to 72,748.83, 100,392.31 and 40,917.76 is: 56,465.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,748.83 : 100,392.31 = 40,917.76 : x
  2. Step 2: Convert to fraction form
    72,748.83/100,392.31 = 40,917.76/x
  3. Step 3: Cross multiply
    72,748.83x = 100,392.31 × 40,917.76
  4. Step 4: Simplify right side
    72,748.83x = 4,107,828,246.59
  5. Step 5: Solve for x
    x = 4,107,828,246.59/72,748.83
  6. Step 6: Final answer
    x = 56,465.90

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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.