Home / 87,924.28-121,335.76-47,637.84

Finding the Fourth Proportional to 87,924.28, 121,335.76 and 47,637.84

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Solution

The fourth proportional to 87,924.28, 121,335.76 and 47,637.84 is: 65,740.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,924.28 : 121,335.76 = 47,637.84 : x
  2. Step 2: Convert to fraction form
    87,924.28/121,335.76 = 47,637.84/x
  3. Step 3: Cross multiply
    87,924.28x = 121,335.76 × 47,637.84
  4. Step 4: Simplify right side
    87,924.28x = 5,780,173,521.16
  5. Step 5: Solve for x
    x = 5,780,173,521.16/87,924.28
  6. Step 6: Final answer
    x = 65,740.36

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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.