Home / 55,408.10-83,139.15-25,810.70

Finding the Fourth Proportional to 55,408.10, 83,139.15 and 25,810.70

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Solution

The fourth proportional to 55,408.10, 83,139.15 and 25,810.70 is: 38,728.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,408.10 : 83,139.15 = 25,810.70 : x
  2. Step 2: Convert to fraction form
    55,408.10/83,139.15 = 25,810.70/x
  3. Step 3: Cross multiply
    55,408.10x = 83,139.15 × 25,810.70
  4. Step 4: Simplify right side
    55,408.10x = 2,145,879,658.91
  5. Step 5: Solve for x
    x = 2,145,879,658.91/55,408.10
  6. Step 6: Final answer
    x = 38,728.63

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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.