Home / 87,718.59-121,051.57-47,432.26

Finding the Fourth Proportional to 87,718.59, 121,051.57 and 47,432.26

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Solution

The fourth proportional to 87,718.59, 121,051.57 and 47,432.26 is: 65,456.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,718.59 : 121,051.57 = 47,432.26 : x
  2. Step 2: Convert to fraction form
    87,718.59/121,051.57 = 47,432.26/x
  3. Step 3: Cross multiply
    87,718.59x = 121,051.57 × 47,432.26
  4. Step 4: Simplify right side
    87,718.59x = 5,741,748,699.23
  5. Step 5: Solve for x
    x = 5,741,748,699.23/87,718.59
  6. Step 6: Final answer
    x = 65,456.46

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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.