Home / 88,205.27-121,724.13-47,919.35

Finding the Fourth Proportional to 88,205.27, 121,724.13 and 47,919.35

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Solution

The fourth proportional to 88,205.27, 121,724.13 and 47,919.35 is: 66,129.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,205.27 : 121,724.13 = 47,919.35 : x
  2. Step 2: Convert to fraction form
    88,205.27/121,724.13 = 47,919.35/x
  3. Step 3: Cross multiply
    88,205.27x = 121,724.13 × 47,919.35
  4. Step 4: Simplify right side
    88,205.27x = 5,832,941,188.92
  5. Step 5: Solve for x
    x = 5,832,941,188.92/88,205.27
  6. Step 6: Final answer
    x = 66,129.17

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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.