Home / 90,275.52-124,580.13-49,989.28

Finding the Fourth Proportional to 90,275.52, 124,580.13 and 49,989.28

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Solution

The fourth proportional to 90,275.52, 124,580.13 and 49,989.28 is: 68,985.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,275.52 : 124,580.13 = 49,989.28 : x
  2. Step 2: Convert to fraction form
    90,275.52/124,580.13 = 49,989.28/x
  3. Step 3: Cross multiply
    90,275.52x = 124,580.13 × 49,989.28
  4. Step 4: Simplify right side
    90,275.52x = 6,227,670,378.11
  5. Step 5: Solve for x
    x = 6,227,670,378.11/90,275.52
  6. Step 6: Final answer
    x = 68,985.15

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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.