Home / 86,439.76-129,710.66-36,516.62

Finding the Fourth Proportional to 86,439.76, 129,710.66 and 36,516.62

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Solution

The fourth proportional to 86,439.76, 129,710.66 and 36,516.62 is: 54,796.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,439.76 : 129,710.66 = 36,516.62 : x
  2. Step 2: Convert to fraction form
    86,439.76/129,710.66 = 36,516.62/x
  3. Step 3: Cross multiply
    86,439.76x = 129,710.66 × 36,516.62
  4. Step 4: Simplify right side
    86,439.76x = 4,736,594,881.17
  5. Step 5: Solve for x
    x = 4,736,594,881.17/86,439.76
  6. Step 6: Final answer
    x = 54,796.48

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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.