Home / 90,402.65-124,747.25-50,112.98

Finding the Fourth Proportional to 90,402.65, 124,747.25 and 50,112.98

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Solution

The fourth proportional to 90,402.65, 124,747.25 and 50,112.98 is: 69,151.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,402.65 : 124,747.25 = 50,112.98 : x
  2. Step 2: Convert to fraction form
    90,402.65/124,747.25 = 50,112.98/x
  3. Step 3: Cross multiply
    90,402.65x = 124,747.25 × 50,112.98
  4. Step 4: Simplify right side
    90,402.65x = 6,251,456,444.31
  5. Step 5: Solve for x
    x = 6,251,456,444.31/90,402.65
  6. Step 6: Final answer
    x = 69,151.25

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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.