Home / 88,125.40-121,614-47,839.54

Finding the Fourth Proportional to 88,125.40, 121,614 and 47,839.54

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Solution

The fourth proportional to 88,125.40, 121,614 and 47,839.54 is: 66,019.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,125.40 : 121,614 = 47,839.54 : x
  2. Step 2: Convert to fraction form
    88,125.40/121,614 = 47,839.54/x
  3. Step 3: Cross multiply
    88,125.40x = 121,614 × 47,839.54
  4. Step 4: Simplify right side
    88,125.40x = 5,817,957,817.56
  5. Step 5: Solve for x
    x = 5,817,957,817.56/88,125.40
  6. Step 6: Final answer
    x = 66,019.08

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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.