Home / 88,262.18-121,804.17-47,978.64

Finding the Fourth Proportional to 88,262.18, 121,804.17 and 47,978.64

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Solution

The fourth proportional to 88,262.18, 121,804.17 and 47,978.64 is: 66,211.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,262.18 : 121,804.17 = 47,978.64 : x
  2. Step 2: Convert to fraction form
    88,262.18/121,804.17 = 47,978.64/x
  3. Step 3: Cross multiply
    88,262.18x = 121,804.17 × 47,978.64
  4. Step 4: Simplify right side
    88,262.18x = 5,843,998,422.93
  5. Step 5: Solve for x
    x = 5,843,998,422.93/88,262.18
  6. Step 6: Final answer
    x = 66,211.81

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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.