Home / 56,762.52-78,331.50-31,612.20

Finding the Fourth Proportional to 56,762.52, 78,331.50 and 31,612.20

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Solution

The fourth proportional to 56,762.52, 78,331.50 and 31,612.20 is: 43,624.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,762.52 : 78,331.50 = 31,612.20 : x
  2. Step 2: Convert to fraction form
    56,762.52/78,331.50 = 31,612.20/x
  3. Step 3: Cross multiply
    56,762.52x = 78,331.50 × 31,612.20
  4. Step 4: Simplify right side
    56,762.52x = 2,476,231,044.30
  5. Step 5: Solve for x
    x = 2,476,231,044.30/56,762.52
  6. Step 6: Final answer
    x = 43,624.40

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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.