Home / 80,737.43-121,027.57-38,606.63

Finding the Fourth Proportional to 80,737.43, 121,027.57 and 38,606.63

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Solution

The fourth proportional to 80,737.43, 121,027.57 and 38,606.63 is: 57,872.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,737.43 : 121,027.57 = 38,606.63 : x
  2. Step 2: Convert to fraction form
    80,737.43/121,027.57 = 38,606.63/x
  3. Step 3: Cross multiply
    80,737.43x = 121,027.57 × 38,606.63
  4. Step 4: Simplify right side
    80,737.43x = 4,672,466,614.79
  5. Step 5: Solve for x
    x = 4,672,466,614.79/80,737.43
  6. Step 6: Final answer
    x = 57,872.37

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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.