Home / 54,781.63-75,530.13-45,720.02

Finding the Fourth Proportional to 54,781.63, 75,530.13 and 45,720.02

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Solution

The fourth proportional to 54,781.63, 75,530.13 and 45,720.02 is: 63,036.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,781.63 : 75,530.13 = 45,720.02 : x
  2. Step 2: Convert to fraction form
    54,781.63/75,530.13 = 45,720.02/x
  3. Step 3: Cross multiply
    54,781.63x = 75,530.13 × 45,720.02
  4. Step 4: Simplify right side
    54,781.63x = 3,453,239,054.20
  5. Step 5: Solve for x
    x = 3,453,239,054.20/54,781.63
  6. Step 6: Final answer
    x = 63,036.44

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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.