Home / 86,456.17-129,653.05-36,540.13

Finding the Fourth Proportional to 86,456.17, 129,653.05 and 36,540.13

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Solution

The fourth proportional to 86,456.17, 129,653.05 and 36,540.13 is: 54,797.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,456.17 : 129,653.05 = 36,540.13 : x
  2. Step 2: Convert to fraction form
    86,456.17/129,653.05 = 36,540.13/x
  3. Step 3: Cross multiply
    86,456.17x = 129,653.05 × 36,540.13
  4. Step 4: Simplify right side
    86,456.17x = 4,737,539,301.90
  5. Step 5: Solve for x
    x = 4,737,539,301.90/86,456.17
  6. Step 6: Final answer
    x = 54,797.01

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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.