Home / 89,188.48-123,070.08-51,475.20

Finding the Fourth Proportional to 89,188.48, 123,070.08 and 51,475.20

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Solution

The fourth proportional to 89,188.48, 123,070.08 and 51,475.20 is: 71,029.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,188.48 : 123,070.08 = 51,475.20 : x
  2. Step 2: Convert to fraction form
    89,188.48/123,070.08 = 51,475.20/x
  3. Step 3: Cross multiply
    89,188.48x = 123,070.08 × 51,475.20
  4. Step 4: Simplify right side
    89,188.48x = 6,335,056,982.02
  5. Step 5: Solve for x
    x = 6,335,056,982.02/89,188.48
  6. Step 6: Final answer
    x = 71,029.99

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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.