Home / 75,838.38-113,665.34-53,658.16

Finding the Fourth Proportional to 75,838.38, 113,665.34 and 53,658.16

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Solution

The fourth proportional to 75,838.38, 113,665.34 and 53,658.16 is: 80,421.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,838.38 : 113,665.34 = 53,658.16 : x
  2. Step 2: Convert to fraction form
    75,838.38/113,665.34 = 53,658.16/x
  3. Step 3: Cross multiply
    75,838.38x = 113,665.34 × 53,658.16
  4. Step 4: Simplify right side
    75,838.38x = 6,099,073,000.17
  5. Step 5: Solve for x
    x = 6,099,073,000.17/75,838.38
  6. Step 6: Final answer
    x = 80,421.98

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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.