Home / 88,123.50-121,610.44-50,397.76

Finding the Fourth Proportional to 88,123.50, 121,610.44 and 50,397.76

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Solution

The fourth proportional to 88,123.50, 121,610.44 and 50,397.76 is: 69,548.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,123.50 : 121,610.44 = 50,397.76 : x
  2. Step 2: Convert to fraction form
    88,123.50/121,610.44 = 50,397.76/x
  3. Step 3: Cross multiply
    88,123.50x = 121,610.44 × 50,397.76
  4. Step 4: Simplify right side
    88,123.50x = 6,128,893,768.61
  5. Step 5: Solve for x
    x = 6,128,893,768.61/88,123.50
  6. Step 6: Final answer
    x = 69,548.91

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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.