Home / 72,016.66-99,373.08-40,179.40

Finding the Fourth Proportional to 72,016.66, 99,373.08 and 40,179.40

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Solution

The fourth proportional to 72,016.66, 99,373.08 and 40,179.40 is: 55,442.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,016.66 : 99,373.08 = 40,179.40 : x
  2. Step 2: Convert to fraction form
    72,016.66/99,373.08 = 40,179.40/x
  3. Step 3: Cross multiply
    72,016.66x = 99,373.08 × 40,179.40
  4. Step 4: Simplify right side
    72,016.66x = 3,992,750,730.55
  5. Step 5: Solve for x
    x = 3,992,750,730.55/72,016.66
  6. Step 6: Final answer
    x = 55,442.04

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1.5x scale

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.