Home / 86,531.61-129,811.14-36,612.08

Finding the Fourth Proportional to 86,531.61, 129,811.14 and 36,612.08

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Solution

The fourth proportional to 86,531.61, 129,811.14 and 36,612.08 is: 54,923.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,531.61 : 129,811.14 = 36,612.08 : x
  2. Step 2: Convert to fraction form
    86,531.61/129,811.14 = 36,612.08/x
  3. Step 3: Cross multiply
    86,531.61x = 129,811.14 × 36,612.08
  4. Step 4: Simplify right side
    86,531.61x = 4,752,655,842.57
  5. Step 5: Solve for x
    x = 4,752,655,842.57/86,531.61
  6. Step 6: Final answer
    x = 54,923.93

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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.