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Finding the Fourth Proportional to 78,547.33, 117,839.22 and 25,953.62

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Solution

The fourth proportional to 78,547.33, 117,839.22 and 25,953.62 is: 38,936.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,547.33 : 117,839.22 = 25,953.62 : x
  2. Step 2: Convert to fraction form
    78,547.33/117,839.22 = 25,953.62/x
  3. Step 3: Cross multiply
    78,547.33x = 117,839.22 × 25,953.62
  4. Step 4: Simplify right side
    78,547.33x = 3,058,354,207.21
  5. Step 5: Solve for x
    x = 3,058,354,207.21/78,547.33
  6. Step 6: Final answer
    x = 38,936.45

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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.