Home / 81,434.20-122,114.85-37,038.10

Finding the Fourth Proportional to 81,434.20, 122,114.85 and 37,038.10

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Solution

The fourth proportional to 81,434.20, 122,114.85 and 37,038.10 is: 55,540.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,434.20 : 122,114.85 = 37,038.10 : x
  2. Step 2: Convert to fraction form
    81,434.20/122,114.85 = 37,038.10/x
  3. Step 3: Cross multiply
    81,434.20x = 122,114.85 × 37,038.10
  4. Step 4: Simplify right side
    81,434.20x = 4,522,902,025.79
  5. Step 5: Solve for x
    x = 4,522,902,025.79/81,434.20
  6. Step 6: Final answer
    x = 55,540.57

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1.5x scale

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.