Home / 88,355.46-121,921.42-52,538.55

Finding the Fourth Proportional to 88,355.46, 121,921.42 and 52,538.55

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Solution

The fourth proportional to 88,355.46, 121,921.42 and 52,538.55 is: 72,497.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,355.46 : 121,921.42 = 52,538.55 : x
  2. Step 2: Convert to fraction form
    88,355.46/121,921.42 = 52,538.55/x
  3. Step 3: Cross multiply
    88,355.46x = 121,921.42 × 52,538.55
  4. Step 4: Simplify right side
    88,355.46x = 6,405,574,620.74
  5. Step 5: Solve for x
    x = 6,405,574,620.74/88,355.46
  6. Step 6: Final answer
    x = 72,497.78

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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.