Home / 90,032.38-124,236.18-57,709.94

Finding the Fourth Proportional to 90,032.38, 124,236.18 and 57,709.94

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Solution

The fourth proportional to 90,032.38, 124,236.18 and 57,709.94 is: 79,634.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,032.38 : 124,236.18 = 57,709.94 : x
  2. Step 2: Convert to fraction form
    90,032.38/124,236.18 = 57,709.94/x
  3. Step 3: Cross multiply
    90,032.38x = 124,236.18 × 57,709.94
  4. Step 4: Simplify right side
    90,032.38x = 7,169,661,872.45
  5. Step 5: Solve for x
    x = 7,169,661,872.45/90,032.38
  6. Step 6: Final answer
    x = 79,634.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.