Home / 71,385.03-98,511.39-39,554.46

Finding the Fourth Proportional to 71,385.03, 98,511.39 and 39,554.46

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Solution

The fourth proportional to 71,385.03, 98,511.39 and 39,554.46 is: 54,585.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,385.03 : 98,511.39 = 39,554.46 : x
  2. Step 2: Convert to fraction form
    71,385.03/98,511.39 = 39,554.46/x
  3. Step 3: Cross multiply
    71,385.03x = 98,511.39 × 39,554.46
  4. Step 4: Simplify right side
    71,385.03x = 3,896,564,835.30
  5. Step 5: Solve for x
    x = 3,896,564,835.30/71,385.03
  6. Step 6: Final answer
    x = 54,585.18

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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.