Home / 78,237.22-117,372.17-25,642.57

Finding the Fourth Proportional to 78,237.22, 117,372.17 and 25,642.57

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Solution

The fourth proportional to 78,237.22, 117,372.17 and 25,642.57 is: 38,469.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,237.22 : 117,372.17 = 25,642.57 : x
  2. Step 2: Convert to fraction form
    78,237.22/117,372.17 = 25,642.57/x
  3. Step 3: Cross multiply
    78,237.22x = 117,372.17 × 25,642.57
  4. Step 4: Simplify right side
    78,237.22x = 3,009,724,085.28
  5. Step 5: Solve for x
    x = 3,009,724,085.28/78,237.22
  6. Step 6: Final answer
    x = 38,469.21

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1.5x scale

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.