Home / 88,736.20-122,328.74-54,721.84

Finding the Fourth Proportional to 88,736.20, 122,328.74 and 54,721.84

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Solution

The fourth proportional to 88,736.20, 122,328.74 and 54,721.84 is: 75,437.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,736.20 : 122,328.74 = 54,721.84 : x
  2. Step 2: Convert to fraction form
    88,736.20/122,328.74 = 54,721.84/x
  3. Step 3: Cross multiply
    88,736.20x = 122,328.74 × 54,721.84
  4. Step 4: Simplify right side
    88,736.20x = 6,694,053,737.68
  5. Step 5: Solve for x
    x = 6,694,053,737.68/88,736.20
  6. Step 6: Final answer
    x = 75,437.69

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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.