Home / 86,310.05-129,479.03-25,526.48

Finding the Fourth Proportional to 86,310.05, 129,479.03 and 25,526.48

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Solution

The fourth proportional to 86,310.05, 129,479.03 and 25,526.48 is: 38,293.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,310.05 : 129,479.03 = 25,526.48 : x
  2. Step 2: Convert to fraction form
    86,310.05/129,479.03 = 25,526.48/x
  3. Step 3: Cross multiply
    86,310.05x = 129,479.03 × 25,526.48
  4. Step 4: Simplify right side
    86,310.05x = 3,305,143,869.71
  5. Step 5: Solve for x
    x = 3,305,143,869.71/86,310.05
  6. Step 6: Final answer
    x = 38,293.85

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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.