Home / 78,360.56-117,549.04-25,774.14

Finding the Fourth Proportional to 78,360.56, 117,549.04 and 25,774.14

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Solution

The fourth proportional to 78,360.56, 117,549.04 and 25,774.14 is: 38,663.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,360.56 : 117,549.04 = 25,774.14 : x
  2. Step 2: Convert to fraction form
    78,360.56/117,549.04 = 25,774.14/x
  3. Step 3: Cross multiply
    78,360.56x = 117,549.04 × 25,774.14
  4. Step 4: Simplify right side
    78,360.56x = 3,029,725,413.83
  5. Step 5: Solve for x
    x = 3,029,725,413.83/78,360.56
  6. Step 6: Final answer
    x = 38,663.91

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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.