Home / 47,081.04-70,574.16-20,781.12

Finding the Fourth Proportional to 47,081.04, 70,574.16 and 20,781.12

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Solution

The fourth proportional to 47,081.04, 70,574.16 and 20,781.12 is: 31,150.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,081.04 : 70,574.16 = 20,781.12 : x
  2. Step 2: Convert to fraction form
    47,081.04/70,574.16 = 20,781.12/x
  3. Step 3: Cross multiply
    47,081.04x = 70,574.16 × 20,781.12
  4. Step 4: Simplify right side
    47,081.04x = 1,466,610,087.86
  5. Step 5: Solve for x
    x = 1,466,610,087.86/47,081.04
  6. Step 6: Final answer
    x = 31,150.76

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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.