Home / 71,511.42-98,722.50-50,385.00

Finding the Fourth Proportional to 71,511.42, 98,722.50 and 50,385.00

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Solution

The fourth proportional to 71,511.42, 98,722.50 and 50,385.00 is: 69,557.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,511.42 : 98,722.50 = 50,385.00 : x
  2. Step 2: Convert to fraction form
    71,511.42/98,722.50 = 50,385.00/x
  3. Step 3: Cross multiply
    71,511.42x = 98,722.50 × 50,385.00
  4. Step 4: Simplify right side
    71,511.42x = 4,974,132,981.23
  5. Step 5: Solve for x
    x = 4,974,132,981.23/71,511.42
  6. Step 6: Final answer
    x = 69,557.19

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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.