Home / 88,141.30-121,635.87-47,855.39

Finding the Fourth Proportional to 88,141.30, 121,635.87 and 47,855.39

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Solution

The fourth proportional to 88,141.30, 121,635.87 and 47,855.39 is: 66,040.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,141.30 : 121,635.87 = 47,855.39 : x
  2. Step 2: Convert to fraction form
    88,141.30/121,635.87 = 47,855.39/x
  3. Step 3: Cross multiply
    88,141.30x = 121,635.87 × 47,855.39
  4. Step 4: Simplify right side
    88,141.30x = 5,820,932,642.09
  5. Step 5: Solve for x
    x = 5,820,932,642.09/88,141.30
  6. Step 6: Final answer
    x = 66,040.92

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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.