Home / 86,076.16-129,135.06-29,908.13

Finding the Fourth Proportional to 86,076.16, 129,135.06 and 29,908.13

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Solution

The fourth proportional to 86,076.16, 129,135.06 and 29,908.13 is: 44,869.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,076.16 : 129,135.06 = 29,908.13 : x
  2. Step 2: Convert to fraction form
    86,076.16/129,135.06 = 29,908.13/x
  3. Step 3: Cross multiply
    86,076.16x = 129,135.06 × 29,908.13
  4. Step 4: Simplify right side
    86,076.16x = 3,862,187,516.36
  5. Step 5: Solve for x
    x = 3,862,187,516.36/86,076.16
  6. Step 6: Final answer
    x = 44,869.42

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1.5x scale

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.