Home / 86,205.28-129,316.92-23,875.78

Finding the Fourth Proportional to 86,205.28, 129,316.92 and 23,875.78

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Solution

The fourth proportional to 86,205.28, 129,316.92 and 23,875.78 is: 35,816.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,205.28 : 129,316.92 = 23,875.78 : x
  2. Step 2: Convert to fraction form
    86,205.28/129,316.92 = 23,875.78/x
  3. Step 3: Cross multiply
    86,205.28x = 129,316.92 × 23,875.78
  4. Step 4: Simplify right side
    86,205.28x = 3,087,542,332.20
  5. Step 5: Solve for x
    x = 3,087,542,332.20/86,205.28
  6. Step 6: Final answer
    x = 35,816.16

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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.