Home / 78,044.47-117,085.33-25,454

Finding the Fourth Proportional to 78,044.47, 117,085.33 and 25,454

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Solution

The fourth proportional to 78,044.47, 117,085.33 and 25,454 is: 38,187.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,044.47 : 117,085.33 = 25,454 : x
  2. Step 2: Convert to fraction form
    78,044.47/117,085.33 = 25,454/x
  3. Step 3: Cross multiply
    78,044.47x = 117,085.33 × 25,454
  4. Step 4: Simplify right side
    78,044.47x = 2,980,289,989.82
  5. Step 5: Solve for x
    x = 2,980,289,989.82/78,044.47
  6. Step 6: Final answer
    x = 38,187.07

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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.