Home / 54,873.24-75,720.60-31,002

Finding the Fourth Proportional to 54,873.24, 75,720.60 and 31,002

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Solution

The fourth proportional to 54,873.24, 75,720.60 and 31,002 is: 42,780.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,873.24 : 75,720.60 = 31,002 : x
  2. Step 2: Convert to fraction form
    54,873.24/75,720.60 = 31,002/x
  3. Step 3: Cross multiply
    54,873.24x = 75,720.60 × 31,002
  4. Step 4: Simplify right side
    54,873.24x = 2,347,490,041.20
  5. Step 5: Solve for x
    x = 2,347,490,041.20/54,873.24
  6. Step 6: Final answer
    x = 42,780.23

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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.