Home / 85,022.72-127,532.96-38,242.56

Finding the Fourth Proportional to 85,022.72, 127,532.96 and 38,242.56

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Solution

The fourth proportional to 85,022.72, 127,532.96 and 38,242.56 is: 57,363.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,022.72 : 127,532.96 = 38,242.56 : x
  2. Step 2: Convert to fraction form
    85,022.72/127,532.96 = 38,242.56/x
  3. Step 3: Cross multiply
    85,022.72x = 127,532.96 × 38,242.56
  4. Step 4: Simplify right side
    85,022.72x = 4,877,186,874.78
  5. Step 5: Solve for x
    x = 4,877,186,874.78/85,022.72
  6. Step 6: Final answer
    x = 57,363.34

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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.