Home / 57,981.16-86,949.46-20,534.32

Finding the Fourth Proportional to 57,981.16, 86,949.46 and 20,534.32

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Solution

The fourth proportional to 57,981.16, 86,949.46 and 20,534.32 is: 30,793.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,981.16 : 86,949.46 = 20,534.32 : x
  2. Step 2: Convert to fraction form
    57,981.16/86,949.46 = 20,534.32/x
  3. Step 3: Cross multiply
    57,981.16x = 86,949.46 × 20,534.32
  4. Step 4: Simplify right side
    57,981.16x = 1,785,448,035.47
  5. Step 5: Solve for x
    x = 1,785,448,035.47/57,981.16
  6. Step 6: Final answer
    x = 30,793.59

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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.