Home / 54,387.20-75,056.28-31,740.64

Finding the Fourth Proportional to 54,387.20, 75,056.28 and 31,740.64

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Solution

The fourth proportional to 54,387.20, 75,056.28 and 31,740.64 is: 43,803.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,387.20 : 75,056.28 = 31,740.64 : x
  2. Step 2: Convert to fraction form
    54,387.20/75,056.28 = 31,740.64/x
  3. Step 3: Cross multiply
    54,387.20x = 75,056.28 × 31,740.64
  4. Step 4: Simplify right side
    54,387.20x = 2,382,334,363.22
  5. Step 5: Solve for x
    x = 2,382,334,363.22/54,387.20
  6. Step 6: Final answer
    x = 43,803.22

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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.