Home / 55,670.13-83,513.84-18,731.25

Finding the Fourth Proportional to 55,670.13, 83,513.84 and 18,731.25

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Solution

The fourth proportional to 55,670.13, 83,513.84 and 18,731.25 is: 28,099.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,670.13 : 83,513.84 = 18,731.25 : x
  2. Step 2: Convert to fraction form
    55,670.13/83,513.84 = 18,731.25/x
  3. Step 3: Cross multiply
    55,670.13x = 83,513.84 × 18,731.25
  4. Step 4: Simplify right side
    55,670.13x = 1,564,318,521.84
  5. Step 5: Solve for x
    x = 1,564,318,521.84/55,670.13
  6. Step 6: Final answer
    x = 28,099.78

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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.