Home / 86,251.63-129,336.47-30,084.92

Finding the Fourth Proportional to 86,251.63, 129,336.47 and 30,084.92

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Solution

The fourth proportional to 86,251.63, 129,336.47 and 30,084.92 is: 45,113.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,251.63 : 129,336.47 = 30,084.92 : x
  2. Step 2: Convert to fraction form
    86,251.63/129,336.47 = 30,084.92/x
  3. Step 3: Cross multiply
    86,251.63x = 129,336.47 × 30,084.92
  4. Step 4: Simplify right side
    86,251.63x = 3,891,077,353.03
  5. Step 5: Solve for x
    x = 3,891,077,353.03/86,251.63
  6. Step 6: Final answer
    x = 45,113.09

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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.