Home / 55,283.28-82,860-25,638.69

Finding the Fourth Proportional to 55,283.28, 82,860 and 25,638.69

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Solution

The fourth proportional to 55,283.28, 82,860 and 25,638.69 is: 38,427.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,283.28 : 82,860 = 25,638.69 : x
  2. Step 2: Convert to fraction form
    55,283.28/82,860 = 25,638.69/x
  3. Step 3: Cross multiply
    55,283.28x = 82,860 × 25,638.69
  4. Step 4: Simplify right side
    55,283.28x = 2,124,421,853.40
  5. Step 5: Solve for x
    x = 2,124,421,853.40/55,283.28
  6. Step 6: Final answer
    x = 38,427.93

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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.