Home / 45,781.57-63,116.55-39,138.56

Finding the Fourth Proportional to 45,781.57, 63,116.55 and 39,138.56

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Solution

The fourth proportional to 45,781.57, 63,116.55 and 39,138.56 is: 53,958.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,781.57 : 63,116.55 = 39,138.56 : x
  2. Step 2: Convert to fraction form
    45,781.57/63,116.55 = 39,138.56/x
  3. Step 3: Cross multiply
    45,781.57x = 63,116.55 × 39,138.56
  4. Step 4: Simplify right side
    45,781.57x = 2,470,290,800.27
  5. Step 5: Solve for x
    x = 2,470,290,800.27/45,781.57
  6. Step 6: Final answer
    x = 53,958.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.