Home / 88,091.13-121,566.17-47,804.89

Finding the Fourth Proportional to 88,091.13, 121,566.17 and 47,804.89

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Solution

The fourth proportional to 88,091.13, 121,566.17 and 47,804.89 is: 65,970.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,091.13 : 121,566.17 = 47,804.89 : x
  2. Step 2: Convert to fraction form
    88,091.13/121,566.17 = 47,804.89/x
  3. Step 3: Cross multiply
    88,091.13x = 121,566.17 × 47,804.89
  4. Step 4: Simplify right side
    88,091.13x = 5,811,457,763.30
  5. Step 5: Solve for x
    x = 5,811,457,763.30/88,091.13
  6. Step 6: Final answer
    x = 65,970.97

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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.