Home / 86,751.38-130,127.98-30,581.02

Finding the Fourth Proportional to 86,751.38, 130,127.98 and 30,581.02

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Solution

The fourth proportional to 86,751.38, 130,127.98 and 30,581.02 is: 45,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,751.38 : 130,127.98 = 30,581.02 : x
  2. Step 2: Convert to fraction form
    86,751.38/130,127.98 = 30,581.02/x
  3. Step 3: Cross multiply
    86,751.38x = 130,127.98 × 30,581.02
  4. Step 4: Simplify right side
    86,751.38x = 3,979,446,358.94
  5. Step 5: Solve for x
    x = 3,979,446,358.94/86,751.38
  6. Step 6: Final answer
    x = 45,871.85

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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.