Home / 86,210.56-129,219.96-36,275.92

Finding the Fourth Proportional to 86,210.56, 129,219.96 and 36,275.92

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Solution

The fourth proportional to 86,210.56, 129,219.96 and 36,275.92 is: 54,373.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,210.56 : 129,219.96 = 36,275.92 : x
  2. Step 2: Convert to fraction form
    86,210.56/129,219.96 = 36,275.92/x
  3. Step 3: Cross multiply
    86,210.56x = 129,219.96 × 36,275.92
  4. Step 4: Simplify right side
    86,210.56x = 4,687,572,931.36
  5. Step 5: Solve for x
    x = 4,687,572,931.36/86,210.56
  6. Step 6: Final answer
    x = 54,373.54

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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.