Home / 72,746.54-109,119.38-18,711.14

Finding the Fourth Proportional to 72,746.54, 109,119.38 and 18,711.14

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Solution

The fourth proportional to 72,746.54, 109,119.38 and 18,711.14 is: 28,066.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,746.54 : 109,119.38 = 18,711.14 : x
  2. Step 2: Convert to fraction form
    72,746.54/109,119.38 = 18,711.14/x
  3. Step 3: Cross multiply
    72,746.54x = 109,119.38 × 18,711.14
  4. Step 4: Simplify right side
    72,746.54x = 2,041,747,995.89
  5. Step 5: Solve for x
    x = 2,041,747,995.89/72,746.54
  6. Step 6: Final answer
    x = 28,066.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.