Home / 88,310.57-121,825.72-52,475.20

Finding the Fourth Proportional to 88,310.57, 121,825.72 and 52,475.20

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Solution

The fourth proportional to 88,310.57, 121,825.72 and 52,475.20 is: 72,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,310.57 : 121,825.72 = 52,475.20 : x
  2. Step 2: Convert to fraction form
    88,310.57/121,825.72 = 52,475.20/x
  3. Step 3: Cross multiply
    88,310.57x = 121,825.72 × 52,475.20
  4. Step 4: Simplify right side
    88,310.57x = 6,392,828,890.96
  5. Step 5: Solve for x
    x = 6,392,828,890.96/88,310.57
  6. Step 6: Final answer
    x = 72,390.30

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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.