Home / 88,319.62-121,916.37-54,342.01

Finding the Fourth Proportional to 88,319.62, 121,916.37 and 54,342.01

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Solution

The fourth proportional to 88,319.62, 121,916.37 and 54,342.01 is: 75,013.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,319.62 : 121,916.37 = 54,342.01 : x
  2. Step 2: Convert to fraction form
    88,319.62/121,916.37 = 54,342.01/x
  3. Step 3: Cross multiply
    88,319.62x = 121,916.37 × 54,342.01
  4. Step 4: Simplify right side
    88,319.62x = 6,625,180,597.70
  5. Step 5: Solve for x
    x = 6,625,180,597.70/88,319.62
  6. Step 6: Final answer
    x = 75,013.69

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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.