Home / 65,180.47-97,781.30-20,191.32

Finding the Fourth Proportional to 65,180.47, 97,781.30 and 20,191.32

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Solution

The fourth proportional to 65,180.47, 97,781.30 and 20,191.32 is: 30,290.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,180.47 : 97,781.30 = 20,191.32 : x
  2. Step 2: Convert to fraction form
    65,180.47/97,781.30 = 20,191.32/x
  3. Step 3: Cross multiply
    65,180.47x = 97,781.30 × 20,191.32
  4. Step 4: Simplify right side
    65,180.47x = 1,974,333,518.32
  5. Step 5: Solve for x
    x = 1,974,333,518.32/65,180.47
  6. Step 6: Final answer
    x = 30,290.26

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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.