Home / 90,020.55-124,224.06-49,734.66

Finding the Fourth Proportional to 90,020.55, 124,224.06 and 49,734.66

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Solution

The fourth proportional to 90,020.55, 124,224.06 and 49,734.66 is: 68,631.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,020.55 : 124,224.06 = 49,734.66 : x
  2. Step 2: Convert to fraction form
    90,020.55/124,224.06 = 49,734.66/x
  3. Step 3: Cross multiply
    90,020.55x = 124,224.06 × 49,734.66
  4. Step 4: Simplify right side
    90,020.55x = 6,178,241,387.92
  5. Step 5: Solve for x
    x = 6,178,241,387.92/90,020.55
  6. Step 6: Final answer
    x = 68,631.46

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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.