Home / 88,121.32-121,567.14-61,327.72

Finding the Fourth Proportional to 88,121.32, 121,567.14 and 61,327.72

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Solution

The fourth proportional to 88,121.32, 121,567.14 and 61,327.72 is: 84,604.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,121.32 : 121,567.14 = 61,327.72 : x
  2. Step 2: Convert to fraction form
    88,121.32/121,567.14 = 61,327.72/x
  3. Step 3: Cross multiply
    88,121.32x = 121,567.14 × 61,327.72
  4. Step 4: Simplify right side
    88,121.32x = 7,455,435,523.12
  5. Step 5: Solve for x
    x = 7,455,435,523.12/88,121.32
  6. Step 6: Final answer
    x = 84,604.22

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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.