Home / 78,422.22-117,621.18-25,832.16

Finding the Fourth Proportional to 78,422.22, 117,621.18 and 25,832.16

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Solution

The fourth proportional to 78,422.22, 117,621.18 and 25,832.16 is: 38,744.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,422.22 : 117,621.18 = 25,832.16 : x
  2. Step 2: Convert to fraction form
    78,422.22/117,621.18 = 25,832.16/x
  3. Step 3: Cross multiply
    78,422.22x = 117,621.18 × 25,832.16
  4. Step 4: Simplify right side
    78,422.22x = 3,038,409,141.15
  5. Step 5: Solve for x
    x = 3,038,409,141.15/78,422.22
  6. Step 6: Final answer
    x = 38,744.24

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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.