Home / 86,740.56-130,022.16-49,221.36

Finding the Fourth Proportional to 86,740.56, 130,022.16 and 49,221.36

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Solution

The fourth proportional to 86,740.56, 130,022.16 and 49,221.36 is: 73,781.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,740.56 : 130,022.16 = 49,221.36 : x
  2. Step 2: Convert to fraction form
    86,740.56/130,022.16 = 49,221.36/x
  3. Step 3: Cross multiply
    86,740.56x = 130,022.16 × 49,221.36
  4. Step 4: Simplify right side
    86,740.56x = 6,399,867,545.34
  5. Step 5: Solve for x
    x = 6,399,867,545.34/86,740.56
  6. Step 6: Final answer
    x = 73,781.72

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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.