Home / 78,423.22-117,622.68-25,833.16

Finding the Fourth Proportional to 78,423.22, 117,622.68 and 25,833.16

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Solution

The fourth proportional to 78,423.22, 117,622.68 and 25,833.16 is: 38,745.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,423.22 : 117,622.68 = 25,833.16 : x
  2. Step 2: Convert to fraction form
    78,423.22/117,622.68 = 25,833.16/x
  3. Step 3: Cross multiply
    78,423.22x = 117,622.68 × 25,833.16
  4. Step 4: Simplify right side
    78,423.22x = 3,038,565,512.07
  5. Step 5: Solve for x
    x = 3,038,565,512.07/78,423.22
  6. Step 6: Final answer
    x = 38,745.74

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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.