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Finding the Fourth Proportional to 88,486.56, 132,417.90 and 55,222.20

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Solution

The fourth proportional to 88,486.56, 132,417.90 and 55,222.20 is: 82,638.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,486.56 : 132,417.90 = 55,222.20 : x
  2. Step 2: Convert to fraction form
    88,486.56/132,417.90 = 55,222.20/x
  3. Step 3: Cross multiply
    88,486.56x = 132,417.90 × 55,222.20
  4. Step 4: Simplify right side
    88,486.56x = 7,312,407,757.38
  5. Step 5: Solve for x
    x = 7,312,407,757.38/88,486.56
  6. Step 6: Final answer
    x = 82,638.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.