Home / 88,091.02-121,565.68-47,804.78

Finding the Fourth Proportional to 88,091.02, 121,565.68 and 47,804.78

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Solution

The fourth proportional to 88,091.02, 121,565.68 and 47,804.78 is: 65,970.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,091.02 : 121,565.68 = 47,804.78 : x
  2. Step 2: Convert to fraction form
    88,091.02/121,565.68 = 47,804.78/x
  3. Step 3: Cross multiply
    88,091.02x = 121,565.68 × 47,804.78
  4. Step 4: Simplify right side
    88,091.02x = 5,811,420,587.95
  5. Step 5: Solve for x
    x = 5,811,420,587.95/88,091.02
  6. Step 6: Final answer
    x = 65,970.64

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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.