Home / 88,837.42-122,387.79-61,931.85

Finding the Fourth Proportional to 88,837.42, 122,387.79 and 61,931.85

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Solution

The fourth proportional to 88,837.42, 122,387.79 and 61,931.85 is: 85,321.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,837.42 : 122,387.79 = 61,931.85 : x
  2. Step 2: Convert to fraction form
    88,837.42/122,387.79 = 61,931.85/x
  3. Step 3: Cross multiply
    88,837.42x = 122,387.79 × 61,931.85
  4. Step 4: Simplify right side
    88,837.42x = 7,579,702,363.39
  5. Step 5: Solve for x
    x = 7,579,702,363.39/88,837.42
  6. Step 6: Final answer
    x = 85,321.05

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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.