Home / 85,432.55-128,124.62-35,450.83

Finding the Fourth Proportional to 85,432.55, 128,124.62 and 35,450.83

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Solution

The fourth proportional to 85,432.55, 128,124.62 and 35,450.83 is: 53,166.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,432.55 : 128,124.62 = 35,450.83 : x
  2. Step 2: Convert to fraction form
    85,432.55/128,124.62 = 35,450.83/x
  3. Step 3: Cross multiply
    85,432.55x = 128,124.62 × 35,450.83
  4. Step 4: Simplify right side
    85,432.55x = 4,542,123,304.56
  5. Step 5: Solve for x
    x = 4,542,123,304.56/85,432.55
  6. Step 6: Final answer
    x = 53,166.19

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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.