Home / 45,781.48-63,172.90-25,636.78

Finding the Fourth Proportional to 45,781.48, 63,172.90 and 25,636.78

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Solution

The fourth proportional to 45,781.48, 63,172.90 and 25,636.78 is: 35,375.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,781.48 : 63,172.90 = 25,636.78 : x
  2. Step 2: Convert to fraction form
    45,781.48/63,172.90 = 25,636.78/x
  3. Step 3: Cross multiply
    45,781.48x = 63,172.90 × 25,636.78
  4. Step 4: Simplify right side
    45,781.48x = 1,619,549,739.26
  5. Step 5: Solve for x
    x = 1,619,549,739.26/45,781.48
  6. Step 6: Final answer
    x = 35,375.65

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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.