Home / 90,060.32-124,272.47-49,768.61

Finding the Fourth Proportional to 90,060.32, 124,272.47 and 49,768.61

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Solution

The fourth proportional to 90,060.32, 124,272.47 and 49,768.61 is: 68,674.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,060.32 : 124,272.47 = 49,768.61 : x
  2. Step 2: Convert to fraction form
    90,060.32/124,272.47 = 49,768.61/x
  3. Step 3: Cross multiply
    90,060.32x = 124,272.47 × 49,768.61
  4. Step 4: Simplify right side
    90,060.32x = 6,184,868,062.25
  5. Step 5: Solve for x
    x = 6,184,868,062.25/90,060.32
  6. Step 6: Final answer
    x = 68,674.73

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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.