Home / 55,396.23-83,137.95-20,345.91

Finding the Fourth Proportional to 55,396.23, 83,137.95 and 20,345.91

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Solution

The fourth proportional to 55,396.23, 83,137.95 and 20,345.91 is: 30,534.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,396.23 : 83,137.95 = 20,345.91 : x
  2. Step 2: Convert to fraction form
    55,396.23/83,137.95 = 20,345.91/x
  3. Step 3: Cross multiply
    55,396.23x = 83,137.95 × 20,345.91
  4. Step 4: Simplify right side
    55,396.23x = 1,691,517,248.28
  5. Step 5: Solve for x
    x = 1,691,517,248.28/55,396.23
  6. Step 6: Final answer
    x = 30,534.88

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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.