Home / 78,109.92-117,182.70-25,518.24

Finding the Fourth Proportional to 78,109.92, 117,182.70 and 25,518.24

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Solution

The fourth proportional to 78,109.92, 117,182.70 and 25,518.24 is: 38,283.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,109.92 : 117,182.70 = 25,518.24 : x
  2. Step 2: Convert to fraction form
    78,109.92/117,182.70 = 25,518.24/x
  3. Step 3: Cross multiply
    78,109.92x = 117,182.70 × 25,518.24
  4. Step 4: Simplify right side
    78,109.92x = 2,990,296,262.45
  5. Step 5: Solve for x
    x = 2,990,296,262.45/78,109.92
  6. Step 6: Final answer
    x = 38,283.18

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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.