Home / 56,140.76-77,342.65-39,114.20

Finding the Fourth Proportional to 56,140.76, 77,342.65 and 39,114.20

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Solution

The fourth proportional to 56,140.76, 77,342.65 and 39,114.20 is: 53,885.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,140.76 : 77,342.65 = 39,114.20 : x
  2. Step 2: Convert to fraction form
    56,140.76/77,342.65 = 39,114.20/x
  3. Step 3: Cross multiply
    56,140.76x = 77,342.65 × 39,114.20
  4. Step 4: Simplify right side
    56,140.76x = 3,025,195,976.20
  5. Step 5: Solve for x
    x = 3,025,195,976.20/56,140.76
  6. Step 6: Final answer
    x = 53,885.91

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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.