Home / 78,383.60-117,604.56-36,284.16

Finding the Fourth Proportional to 78,383.60, 117,604.56 and 36,284.16

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Solution

The fourth proportional to 78,383.60, 117,604.56 and 36,284.16 is: 54,439.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,383.60 : 117,604.56 = 36,284.16 : x
  2. Step 2: Convert to fraction form
    78,383.60/117,604.56 = 36,284.16/x
  3. Step 3: Cross multiply
    78,383.60x = 117,604.56 × 36,284.16
  4. Step 4: Simplify right side
    78,383.60x = 4,267,182,671.77
  5. Step 5: Solve for x
    x = 4,267,182,671.77/78,383.60
  6. Step 6: Final answer
    x = 54,439.74

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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.