Home / 90,508.78-124,904.97-50,225.50

Finding the Fourth Proportional to 90,508.78, 124,904.97 and 50,225.50

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Solution

The fourth proportional to 90,508.78, 124,904.97 and 50,225.50 is: 69,312.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,508.78 : 124,904.97 = 50,225.50 : x
  2. Step 2: Convert to fraction form
    90,508.78/124,904.97 = 50,225.50/x
  3. Step 3: Cross multiply
    90,508.78x = 124,904.97 × 50,225.50
  4. Step 4: Simplify right side
    90,508.78x = 6,273,414,570.74
  5. Step 5: Solve for x
    x = 6,273,414,570.74/90,508.78
  6. Step 6: Final answer
    x = 69,312.77

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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.