Home / 86,581.32-129,875.68-34,002.20

Finding the Fourth Proportional to 86,581.32, 129,875.68 and 34,002.20

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Solution

The fourth proportional to 86,581.32, 129,875.68 and 34,002.20 is: 51,004.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,581.32 : 129,875.68 = 34,002.20 : x
  2. Step 2: Convert to fraction form
    86,581.32/129,875.68 = 34,002.20/x
  3. Step 3: Cross multiply
    86,581.32x = 129,875.68 × 34,002.20
  4. Step 4: Simplify right side
    86,581.32x = 4,416,058,846.50
  5. Step 5: Solve for x
    x = 4,416,058,846.50/86,581.32
  6. Step 6: Final answer
    x = 51,004.75

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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.