Home / 88,781.32-122,521.86-51,055.57

Finding the Fourth Proportional to 88,781.32, 122,521.86 and 51,055.57

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Solution

The fourth proportional to 88,781.32, 122,521.86 and 51,055.57 is: 70,458.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,781.32 : 122,521.86 = 51,055.57 : x
  2. Step 2: Convert to fraction form
    88,781.32/122,521.86 = 51,055.57/x
  3. Step 3: Cross multiply
    88,781.32x = 122,521.86 × 51,055.57
  4. Step 4: Simplify right side
    88,781.32x = 6,255,423,399.76
  5. Step 5: Solve for x
    x = 6,255,423,399.76/88,781.32
  6. Step 6: Final answer
    x = 70,458.78

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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.