Home / 86,071.46-129,102.17-38,674.31

Finding the Fourth Proportional to 86,071.46, 129,102.17 and 38,674.31

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Solution

The fourth proportional to 86,071.46, 129,102.17 and 38,674.31 is: 58,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,071.46 : 129,102.17 = 38,674.31 : x
  2. Step 2: Convert to fraction form
    86,071.46/129,102.17 = 38,674.31/x
  3. Step 3: Cross multiply
    86,071.46x = 129,102.17 × 38,674.31
  4. Step 4: Simplify right side
    86,071.46x = 4,992,936,505.37
  5. Step 5: Solve for x
    x = 4,992,936,505.37/86,071.46
  6. Step 6: Final answer
    x = 58,009.20

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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.