Home / 75,805.55-113,778.35-38,391.92

Finding the Fourth Proportional to 75,805.55, 113,778.35 and 38,391.92

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Solution

The fourth proportional to 75,805.55, 113,778.35 and 38,391.92 is: 57,623.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,805.55 : 113,778.35 = 38,391.92 : x
  2. Step 2: Convert to fraction form
    75,805.55/113,778.35 = 38,391.92/x
  3. Step 3: Cross multiply
    75,805.55x = 113,778.35 × 38,391.92
  4. Step 4: Simplify right side
    75,805.55x = 4,368,168,838.02
  5. Step 5: Solve for x
    x = 4,368,168,838.02/75,805.55
  6. Step 6: Final answer
    x = 57,623.34

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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.