Home / 78,544.86-117,772.68-53,615.10

Finding the Fourth Proportional to 78,544.86, 117,772.68 and 53,615.10

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Solution

The fourth proportional to 78,544.86, 117,772.68 and 53,615.10 is: 80,392.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,544.86 : 117,772.68 = 53,615.10 : x
  2. Step 2: Convert to fraction form
    78,544.86/117,772.68 = 53,615.10/x
  3. Step 3: Cross multiply
    78,544.86x = 117,772.68 × 53,615.10
  4. Step 4: Simplify right side
    78,544.86x = 6,314,394,015.47
  5. Step 5: Solve for x
    x = 6,314,394,015.47/78,544.86
  6. Step 6: Final answer
    x = 80,392.20

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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.