Home / 56,624.43-78,142.23-31,130.97

Finding the Fourth Proportional to 56,624.43, 78,142.23 and 31,130.97

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Solution

The fourth proportional to 56,624.43, 78,142.23 and 31,130.97 is: 42,961.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,624.43 : 78,142.23 = 31,130.97 : x
  2. Step 2: Convert to fraction form
    56,624.43/78,142.23 = 31,130.97/x
  3. Step 3: Cross multiply
    56,624.43x = 78,142.23 × 31,130.97
  4. Step 4: Simplify right side
    56,624.43x = 2,432,643,505.42
  5. Step 5: Solve for x
    x = 2,432,643,505.42/56,624.43
  6. Step 6: Final answer
    x = 42,961.03

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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.