Home / 87,330.02-120,513.78-55,058.10

Finding the Fourth Proportional to 87,330.02, 120,513.78 and 55,058.10

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Solution

The fourth proportional to 87,330.02, 120,513.78 and 55,058.10 is: 75,979.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,330.02 : 120,513.78 = 55,058.10 : x
  2. Step 2: Convert to fraction form
    87,330.02/120,513.78 = 55,058.10/x
  3. Step 3: Cross multiply
    87,330.02x = 120,513.78 × 55,058.10
  4. Step 4: Simplify right side
    87,330.02x = 6,635,259,957.09
  5. Step 5: Solve for x
    x = 6,635,259,957.09/87,330.02
  6. Step 6: Final answer
    x = 75,979.14

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1.5x scale

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.