Home / 82,127.50-123,149.32-40,009.52

Finding the Fourth Proportional to 82,127.50, 123,149.32 and 40,009.52

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Solution

The fourth proportional to 82,127.50, 123,149.32 and 40,009.52 is: 59,993.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,127.50 : 123,149.32 = 40,009.52 : x
  2. Step 2: Convert to fraction form
    82,127.50/123,149.32 = 40,009.52/x
  3. Step 3: Cross multiply
    82,127.50x = 123,149.32 × 40,009.52
  4. Step 4: Simplify right side
    82,127.50x = 4,927,145,181.53
  5. Step 5: Solve for x
    x = 4,927,145,181.53/82,127.50
  6. Step 6: Final answer
    x = 59,993.85

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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.