Home / 78,118.04-117,183.14-25,532.84

Finding the Fourth Proportional to 78,118.04, 117,183.14 and 25,532.84

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Solution

The fourth proportional to 78,118.04, 117,183.14 and 25,532.84 is: 38,301.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,118.04 : 117,183.14 = 25,532.84 : x
  2. Step 2: Convert to fraction form
    78,118.04/117,183.14 = 25,532.84/x
  3. Step 3: Cross multiply
    78,118.04x = 117,183.14 × 25,532.84
  4. Step 4: Simplify right side
    78,118.04x = 2,992,018,364.32
  5. Step 5: Solve for x
    x = 2,992,018,364.32/78,118.04
  6. Step 6: Final answer
    x = 38,301.25

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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.