Home / 88,091.14-121,565.85-47,804.90

Finding the Fourth Proportional to 88,091.14, 121,565.85 and 47,804.90

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Solution

The fourth proportional to 88,091.14, 121,565.85 and 47,804.90 is: 65,970.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,091.14 : 121,565.85 = 47,804.90 : x
  2. Step 2: Convert to fraction form
    88,091.14/121,565.85 = 47,804.90/x
  3. Step 3: Cross multiply
    88,091.14x = 121,565.85 × 47,804.90
  4. Step 4: Simplify right side
    88,091.14x = 5,811,443,726.09
  5. Step 5: Solve for x
    x = 5,811,443,726.09/88,091.14
  6. Step 6: Final answer
    x = 65,970.81

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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.