Home / 86,727.04-130,044.48-39,940

Finding the Fourth Proportional to 86,727.04, 130,044.48 and 39,940

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Solution

The fourth proportional to 86,727.04, 130,044.48 and 39,940 is: 59,888.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,727.04 : 130,044.48 = 39,940 : x
  2. Step 2: Convert to fraction form
    86,727.04/130,044.48 = 39,940/x
  3. Step 3: Cross multiply
    86,727.04x = 130,044.48 × 39,940
  4. Step 4: Simplify right side
    86,727.04x = 5,193,976,531.20
  5. Step 5: Solve for x
    x = 5,193,976,531.20/86,727.04
  6. Step 6: Final answer
    x = 59,888.78

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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.