Home / 90,732.96-136,117.26-31,570.56

Finding the Fourth Proportional to 90,732.96, 136,117.26 and 31,570.56

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Solution

The fourth proportional to 90,732.96, 136,117.26 and 31,570.56 is: 47,362.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,732.96 : 136,117.26 = 31,570.56 : x
  2. Step 2: Convert to fraction form
    90,732.96/136,117.26 = 31,570.56/x
  3. Step 3: Cross multiply
    90,732.96x = 136,117.26 × 31,570.56
  4. Step 4: Simplify right side
    90,732.96x = 4,297,298,123.87
  5. Step 5: Solve for x
    x = 4,297,298,123.87/90,732.96
  6. Step 6: Final answer
    x = 47,362.04

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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.