Home / 87,886.16-121,282.29-47,599

Finding the Fourth Proportional to 87,886.16, 121,282.29 and 47,599

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Solution

The fourth proportional to 87,886.16, 121,282.29 and 47,599 is: 65,686.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,886.16 : 121,282.29 = 47,599 : x
  2. Step 2: Convert to fraction form
    87,886.16/121,282.29 = 47,599/x
  3. Step 3: Cross multiply
    87,886.16x = 121,282.29 × 47,599
  4. Step 4: Simplify right side
    87,886.16x = 5,772,915,721.71
  5. Step 5: Solve for x
    x = 5,772,915,721.71/87,886.16
  6. Step 6: Final answer
    x = 65,686.29

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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.