Home / 80,915.28-111,667.08-45,108.24

Finding the Fourth Proportional to 80,915.28, 111,667.08 and 45,108.24

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Solution

The fourth proportional to 80,915.28, 111,667.08 and 45,108.24 is: 62,251.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,915.28 : 111,667.08 = 45,108.24 : x
  2. Step 2: Convert to fraction form
    80,915.28/111,667.08 = 45,108.24/x
  3. Step 3: Cross multiply
    80,915.28x = 111,667.08 × 45,108.24
  4. Step 4: Simplify right side
    80,915.28x = 5,037,105,444.74
  5. Step 5: Solve for x
    x = 5,037,105,444.74/80,915.28
  6. Step 6: Final answer
    x = 62,251.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.