Home / 54,281.93-81,403.69-25,815.53

Finding the Fourth Proportional to 54,281.93, 81,403.69 and 25,815.53

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Solution

The fourth proportional to 54,281.93, 81,403.69 and 25,815.53 is: 38,714.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,281.93 : 81,403.69 = 25,815.53 : x
  2. Step 2: Convert to fraction form
    54,281.93/81,403.69 = 25,815.53/x
  3. Step 3: Cross multiply
    54,281.93x = 81,403.69 × 25,815.53
  4. Step 4: Simplify right side
    54,281.93x = 2,101,478,929.75
  5. Step 5: Solve for x
    x = 2,101,478,929.75/54,281.93
  6. Step 6: Final answer
    x = 38,714.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.