Home / 101,761.50-140,423.88-56,435.23

Finding the Fourth Proportional to 101,761.50, 140,423.88 and 56,435.23

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Solution

The fourth proportional to 101,761.50, 140,423.88 and 56,435.23 is: 77,876.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,761.50 : 140,423.88 = 56,435.23 : x
  2. Step 2: Convert to fraction form
    101,761.50/140,423.88 = 56,435.23/x
  3. Step 3: Cross multiply
    101,761.50x = 140,423.88 × 56,435.23
  4. Step 4: Simplify right side
    101,761.50x = 7,924,853,965.29
  5. Step 5: Solve for x
    x = 7,924,853,965.29/101,761.50
  6. Step 6: Final answer
    x = 77,876.74

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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.