Home / 56,939.10-85,408.65-38,276.70

Finding the Fourth Proportional to 56,939.10, 85,408.65 and 38,276.70

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Solution

The fourth proportional to 56,939.10, 85,408.65 and 38,276.70 is: 57,415.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,939.10 : 85,408.65 = 38,276.70 : x
  2. Step 2: Convert to fraction form
    56,939.10/85,408.65 = 38,276.70/x
  3. Step 3: Cross multiply
    56,939.10x = 85,408.65 × 38,276.70
  4. Step 4: Simplify right side
    56,939.10x = 3,269,161,273.46
  5. Step 5: Solve for x
    x = 3,269,161,273.46/56,939.10
  6. Step 6: Final answer
    x = 57,415.05

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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.