Home / 81,001.48-111,781.68-45,191.53

Finding the Fourth Proportional to 81,001.48, 111,781.68 and 45,191.53

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Solution

The fourth proportional to 81,001.48, 111,781.68 and 45,191.53 is: 62,364.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,001.48 : 111,781.68 = 45,191.53 : x
  2. Step 2: Convert to fraction form
    81,001.48/111,781.68 = 45,191.53/x
  3. Step 3: Cross multiply
    81,001.48x = 111,781.68 × 45,191.53
  4. Step 4: Simplify right side
    81,001.48x = 5,051,585,145.17
  5. Step 5: Solve for x
    x = 5,051,585,145.17/81,001.48
  6. Step 6: Final answer
    x = 62,364.11

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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.