Home / 88,941.60-122,738.76-57,122.64

Finding the Fourth Proportional to 88,941.60, 122,738.76 and 57,122.64

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Solution

The fourth proportional to 88,941.60, 122,738.76 and 57,122.64 is: 78,828.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,941.60 : 122,738.76 = 57,122.64 : x
  2. Step 2: Convert to fraction form
    88,941.60/122,738.76 = 57,122.64/x
  3. Step 3: Cross multiply
    88,941.60x = 122,738.76 × 57,122.64
  4. Step 4: Simplify right side
    88,941.60x = 7,011,162,001.53
  5. Step 5: Solve for x
    x = 7,011,162,001.53/88,941.60
  6. Step 6: Final answer
    x = 78,828.83

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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.