Home / 71,132.95-106,705.50-18,542.35

Finding the Fourth Proportional to 71,132.95, 106,705.50 and 18,542.35

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Solution

The fourth proportional to 71,132.95, 106,705.50 and 18,542.35 is: 27,815.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,132.95 : 106,705.50 = 18,542.35 : x
  2. Step 2: Convert to fraction form
    71,132.95/106,705.50 = 18,542.35/x
  3. Step 3: Cross multiply
    71,132.95x = 106,705.50 × 18,542.35
  4. Step 4: Simplify right side
    71,132.95x = 1,978,570,727.93
  5. Step 5: Solve for x
    x = 1,978,570,727.93/71,132.95
  6. Step 6: Final answer
    x = 27,815.11

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1.5x scale

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.