Home / 88,155.20-121,654.32-47,869.04

Finding the Fourth Proportional to 88,155.20, 121,654.32 and 47,869.04

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Solution

The fourth proportional to 88,155.20, 121,654.32 and 47,869.04 is: 66,059.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,155.20 : 121,654.32 = 47,869.04 : x
  2. Step 2: Convert to fraction form
    88,155.20/121,654.32 = 47,869.04/x
  3. Step 3: Cross multiply
    88,155.20x = 121,654.32 × 47,869.04
  4. Step 4: Simplify right side
    88,155.20x = 5,823,475,510.25
  5. Step 5: Solve for x
    x = 5,823,475,510.25/88,155.20
  6. Step 6: Final answer
    x = 66,059.35

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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.