Home / 71,386.49-98,517.30-39,554.71

Finding the Fourth Proportional to 71,386.49, 98,517.30 and 39,554.71

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Solution

The fourth proportional to 71,386.49, 98,517.30 and 39,554.71 is: 54,587.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,386.49 : 98,517.30 = 39,554.71 : x
  2. Step 2: Convert to fraction form
    71,386.49/98,517.30 = 39,554.71/x
  3. Step 3: Cross multiply
    71,386.49x = 98,517.30 × 39,554.71
  4. Step 4: Simplify right side
    71,386.49x = 3,896,822,836.86
  5. Step 5: Solve for x
    x = 3,896,822,836.86/71,386.49
  6. Step 6: Final answer
    x = 54,587.68

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1.5x scale

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.