Home / 85,521.60-128,191.68-32,908.32

Finding the Fourth Proportional to 85,521.60, 128,191.68 and 32,908.32

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Solution

The fourth proportional to 85,521.60, 128,191.68 and 32,908.32 is: 49,327.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,521.60 : 128,191.68 = 32,908.32 : x
  2. Step 2: Convert to fraction form
    85,521.60/128,191.68 = 32,908.32/x
  3. Step 3: Cross multiply
    85,521.60x = 128,191.68 × 32,908.32
  4. Step 4: Simplify right side
    85,521.60x = 4,218,572,826.78
  5. Step 5: Solve for x
    x = 4,218,572,826.78/85,521.60
  6. Step 6: Final answer
    x = 49,327.57

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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.