Home / 75,961.40-113,849.74-53,781.16

Finding the Fourth Proportional to 75,961.40, 113,849.74 and 53,781.16

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Solution

The fourth proportional to 75,961.40, 113,849.74 and 53,781.16 is: 80,606.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,961.40 : 113,849.74 = 53,781.16 : x
  2. Step 2: Convert to fraction form
    75,961.40/113,849.74 = 53,781.16/x
  3. Step 3: Cross multiply
    75,961.40x = 113,849.74 × 53,781.16
  4. Step 4: Simplify right side
    75,961.40x = 6,122,971,082.90
  5. Step 5: Solve for x
    x = 6,122,971,082.90/75,961.40
  6. Step 6: Final answer
    x = 80,606.35

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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.