Home / 71,287.64-98,370.20-42,601.59

Finding the Fourth Proportional to 71,287.64, 98,370.20 and 42,601.59

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Solution

The fourth proportional to 71,287.64, 98,370.20 and 42,601.59 is: 58,786.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,287.64 : 98,370.20 = 42,601.59 : x
  2. Step 2: Convert to fraction form
    71,287.64/98,370.20 = 42,601.59/x
  3. Step 3: Cross multiply
    71,287.64x = 98,370.20 × 42,601.59
  4. Step 4: Simplify right side
    71,287.64x = 4,190,727,035.12
  5. Step 5: Solve for x
    x = 4,190,727,035.12/71,287.64
  6. Step 6: Final answer
    x = 58,786.17

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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.