Home / 71,538.06-98,721.81-39,706.14

Finding the Fourth Proportional to 71,538.06, 98,721.81 and 39,706.14

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Solution

The fourth proportional to 71,538.06, 98,721.81 and 39,706.14 is: 54,794.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,538.06 : 98,721.81 = 39,706.14 : x
  2. Step 2: Convert to fraction form
    71,538.06/98,721.81 = 39,706.14/x
  3. Step 3: Cross multiply
    71,538.06x = 98,721.81 × 39,706.14
  4. Step 4: Simplify right side
    71,538.06x = 3,919,862,008.91
  5. Step 5: Solve for x
    x = 3,919,862,008.91/71,538.06
  6. Step 6: Final answer
    x = 54,794.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.