Home / 85,572.38-128,233.26-48,205.28

Finding the Fourth Proportional to 85,572.38, 128,233.26 and 48,205.28

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Solution

The fourth proportional to 85,572.38, 128,233.26 and 48,205.28 is: 72,237.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,572.38 : 128,233.26 = 48,205.28 : x
  2. Step 2: Convert to fraction form
    85,572.38/128,233.26 = 48,205.28/x
  3. Step 3: Cross multiply
    85,572.38x = 128,233.26 × 48,205.28
  4. Step 4: Simplify right side
    85,572.38x = 6,181,520,203.61
  5. Step 5: Solve for x
    x = 6,181,520,203.61/85,572.38
  6. Step 6: Final answer
    x = 72,237.33

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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.