Home / 71,265.25-98,330.43-42,580.61

Finding the Fourth Proportional to 71,265.25, 98,330.43 and 42,580.61

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Solution

The fourth proportional to 71,265.25, 98,330.43 and 42,580.61 is: 58,751.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,265.25 : 98,330.43 = 42,580.61 : x
  2. Step 2: Convert to fraction form
    71,265.25/98,330.43 = 42,580.61/x
  3. Step 3: Cross multiply
    71,265.25x = 98,330.43 × 42,580.61
  4. Step 4: Simplify right side
    71,265.25x = 4,186,969,690.96
  5. Step 5: Solve for x
    x = 4,186,969,690.96/71,265.25
  6. Step 6: Final answer
    x = 58,751.91

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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.