Home / 87,258.42-130,781.79-39,808.48

Finding the Fourth Proportional to 87,258.42, 130,781.79 and 39,808.48

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Solution

The fourth proportional to 87,258.42, 130,781.79 and 39,808.48 is: 59,664.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,258.42 : 130,781.79 = 39,808.48 : x
  2. Step 2: Convert to fraction form
    87,258.42/130,781.79 = 39,808.48/x
  3. Step 3: Cross multiply
    87,258.42x = 130,781.79 × 39,808.48
  4. Step 4: Simplify right side
    87,258.42x = 5,206,224,271.58
  5. Step 5: Solve for x
    x = 5,206,224,271.58/87,258.42
  6. Step 6: Final answer
    x = 59,664.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.