Home / 57,153.66-79,347.17-55,442.94

Finding the Fourth Proportional to 57,153.66, 79,347.17 and 55,442.94

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Solution

The fourth proportional to 57,153.66, 79,347.17 and 55,442.94 is: 76,972.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,153.66 : 79,347.17 = 55,442.94 : x
  2. Step 2: Convert to fraction form
    57,153.66/79,347.17 = 55,442.94/x
  3. Step 3: Cross multiply
    57,153.66x = 79,347.17 × 55,442.94
  4. Step 4: Simplify right side
    57,153.66x = 4,399,240,108.27
  5. Step 5: Solve for x
    x = 4,399,240,108.27/57,153.66
  6. Step 6: Final answer
    x = 76,972.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.