Home / 90,192.72-124,458.12-49,905.84

Finding the Fourth Proportional to 90,192.72, 124,458.12 and 49,905.84

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Solution

The fourth proportional to 90,192.72, 124,458.12 and 49,905.84 is: 68,865.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,192.72 : 124,458.12 = 49,905.84 : x
  2. Step 2: Convert to fraction form
    90,192.72/124,458.12 = 49,905.84/x
  3. Step 3: Cross multiply
    90,192.72x = 124,458.12 × 49,905.84
  4. Step 4: Simplify right side
    90,192.72x = 6,211,187,023.42
  5. Step 5: Solve for x
    x = 6,211,187,023.42/90,192.72
  6. Step 6: Final answer
    x = 68,865.72

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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.