Home / 56,861.26-78,489.21-42,498.34

Finding the Fourth Proportional to 56,861.26, 78,489.21 and 42,498.34

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Solution

The fourth proportional to 56,861.26, 78,489.21 and 42,498.34 is: 58,663.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,861.26 : 78,489.21 = 42,498.34 : x
  2. Step 2: Convert to fraction form
    56,861.26/78,489.21 = 42,498.34/x
  3. Step 3: Cross multiply
    56,861.26x = 78,489.21 × 42,498.34
  4. Step 4: Simplify right side
    56,861.26x = 3,335,661,132.91
  5. Step 5: Solve for x
    x = 3,335,661,132.91/56,861.26
  6. Step 6: Final answer
    x = 58,663.16

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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.