Home / 91,914.15-137,828.16-38,594.75

Finding the Fourth Proportional to 91,914.15, 137,828.16 and 38,594.75

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Solution

The fourth proportional to 91,914.15, 137,828.16 and 38,594.75 is: 57,874.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,914.15 : 137,828.16 = 38,594.75 : x
  2. Step 2: Convert to fraction form
    91,914.15/137,828.16 = 38,594.75/x
  3. Step 3: Cross multiply
    91,914.15x = 137,828.16 × 38,594.75
  4. Step 4: Simplify right side
    91,914.15x = 5,319,442,785.51
  5. Step 5: Solve for x
    x = 5,319,442,785.51/91,914.15
  6. Step 6: Final answer
    x = 57,874.04

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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.