Home / 56,242.20-77,614.28-30,748.16

Finding the Fourth Proportional to 56,242.20, 77,614.28 and 30,748.16

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Solution

The fourth proportional to 56,242.20, 77,614.28 and 30,748.16 is: 42,432.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,242.20 : 77,614.28 = 30,748.16 : x
  2. Step 2: Convert to fraction form
    56,242.20/77,614.28 = 30,748.16/x
  3. Step 3: Cross multiply
    56,242.20x = 77,614.28 × 30,748.16
  4. Step 4: Simplify right side
    56,242.20x = 2,386,495,932.27
  5. Step 5: Solve for x
    x = 2,386,495,932.27/56,242.20
  6. Step 6: Final answer
    x = 42,432.48

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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.