Home / 71,186.73-98,221.40-42,500.82

Finding the Fourth Proportional to 71,186.73, 98,221.40 and 42,500.82

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Solution

The fourth proportional to 71,186.73, 98,221.40 and 42,500.82 is: 58,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,186.73 : 98,221.40 = 42,500.82 : x
  2. Step 2: Convert to fraction form
    71,186.73/98,221.40 = 42,500.82/x
  3. Step 3: Cross multiply
    71,186.73x = 98,221.40 × 42,500.82
  4. Step 4: Simplify right side
    71,186.73x = 4,174,489,829.04
  5. Step 5: Solve for x
    x = 4,174,489,829.04/71,186.73
  6. Step 6: Final answer
    x = 58,641.40

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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.