Home / 75,834.28-113,751.40-40,725.64

Finding the Fourth Proportional to 75,834.28, 113,751.40 and 40,725.64

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Solution

The fourth proportional to 75,834.28, 113,751.40 and 40,725.64 is: 61,088.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,834.28 : 113,751.40 = 40,725.64 : x
  2. Step 2: Convert to fraction form
    75,834.28/113,751.40 = 40,725.64/x
  3. Step 3: Cross multiply
    75,834.28x = 113,751.40 × 40,725.64
  4. Step 4: Simplify right side
    75,834.28x = 4,632,598,565.90
  5. Step 5: Solve for x
    x = 4,632,598,565.90/75,834.28
  6. Step 6: Final answer
    x = 61,088.45

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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.