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Finding the Fourth Proportional to 90,288, 124,593.60 and 50,001.60

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Solution

The fourth proportional to 90,288, 124,593.60 and 50,001.60 is: 69,000.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,288 : 124,593.60 = 50,001.60 : x
  2. Step 2: Convert to fraction form
    90,288/124,593.60 = 50,001.60/x
  3. Step 3: Cross multiply
    90,288x = 124,593.60 × 50,001.60
  4. Step 4: Simplify right side
    90,288x = 6,229,879,349.76
  5. Step 5: Solve for x
    x = 6,229,879,349.76/90,288
  6. Step 6: Final answer
    x = 69,000.08

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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.