Home / 54,781.68-75,530.19-45,720.06

Finding the Fourth Proportional to 54,781.68, 75,530.19 and 45,720.06

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Solution

The fourth proportional to 54,781.68, 75,530.19 and 45,720.06 is: 63,036.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,781.68 : 75,530.19 = 45,720.06 : x
  2. Step 2: Convert to fraction form
    54,781.68/75,530.19 = 45,720.06/x
  3. Step 3: Cross multiply
    54,781.68x = 75,530.19 × 45,720.06
  4. Step 4: Simplify right side
    54,781.68x = 3,453,244,818.61
  5. Step 5: Solve for x
    x = 3,453,244,818.61/54,781.68
  6. Step 6: Final answer
    x = 63,036.49

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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.