Home / 54,720.78-75,510.14-30,853.32

Finding the Fourth Proportional to 54,720.78, 75,510.14 and 30,853.32

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Solution

The fourth proportional to 54,720.78, 75,510.14 and 30,853.32 is: 42,575.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,720.78 : 75,510.14 = 30,853.32 : x
  2. Step 2: Convert to fraction form
    54,720.78/75,510.14 = 30,853.32/x
  3. Step 3: Cross multiply
    54,720.78x = 75,510.14 × 30,853.32
  4. Step 4: Simplify right side
    54,720.78x = 2,329,738,512.66
  5. Step 5: Solve for x
    x = 2,329,738,512.66/54,720.78
  6. Step 6: Final answer
    x = 42,575.02

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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.