Home / 56,123.66-77,451.10-30,630.24

Finding the Fourth Proportional to 56,123.66, 77,451.10 and 30,630.24

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Solution

The fourth proportional to 56,123.66, 77,451.10 and 30,630.24 is: 42,269.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,123.66 : 77,451.10 = 30,630.24 : x
  2. Step 2: Convert to fraction form
    56,123.66/77,451.10 = 30,630.24/x
  3. Step 3: Cross multiply
    56,123.66x = 77,451.10 × 30,630.24
  4. Step 4: Simplify right side
    56,123.66x = 2,372,345,781.26
  5. Step 5: Solve for x
    x = 2,372,345,781.26/56,123.66
  6. Step 6: Final answer
    x = 42,269.98

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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.