Home / 56,688.10-85,032.15-36,729.70

Finding the Fourth Proportional to 56,688.10, 85,032.15 and 36,729.70

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Solution

The fourth proportional to 56,688.10, 85,032.15 and 36,729.70 is: 55,094.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,688.10 : 85,032.15 = 36,729.70 : x
  2. Step 2: Convert to fraction form
    56,688.10/85,032.15 = 36,729.70/x
  3. Step 3: Cross multiply
    56,688.10x = 85,032.15 × 36,729.70
  4. Step 4: Simplify right side
    56,688.10x = 3,123,205,359.86
  5. Step 5: Solve for x
    x = 3,123,205,359.86/56,688.10
  6. Step 6: Final answer
    x = 55,094.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.