Home / 54,365.76-81,547.56-30,942

Finding the Fourth Proportional to 54,365.76, 81,547.56 and 30,942

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Solution

The fourth proportional to 54,365.76, 81,547.56 and 30,942 is: 46,412.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,365.76 : 81,547.56 = 30,942 : x
  2. Step 2: Convert to fraction form
    54,365.76/81,547.56 = 30,942/x
  3. Step 3: Cross multiply
    54,365.76x = 81,547.56 × 30,942
  4. Step 4: Simplify right side
    54,365.76x = 2,523,244,601.52
  5. Step 5: Solve for x
    x = 2,523,244,601.52/54,365.76
  6. Step 6: Final answer
    x = 46,412.39

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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.