Home / 88,248.28-121,782.48-47,961.92

Finding the Fourth Proportional to 88,248.28, 121,782.48 and 47,961.92

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Solution

The fourth proportional to 88,248.28, 121,782.48 and 47,961.92 is: 66,187.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,248.28 : 121,782.48 = 47,961.92 : x
  2. Step 2: Convert to fraction form
    88,248.28/121,782.48 = 47,961.92/x
  3. Step 3: Cross multiply
    88,248.28x = 121,782.48 × 47,961.92
  4. Step 4: Simplify right side
    88,248.28x = 5,840,921,563.16
  5. Step 5: Solve for x
    x = 5,840,921,563.16/88,248.28
  6. Step 6: Final answer
    x = 66,187.37

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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.