Home / 78,460.05-117,690.08-48,498.15

Finding the Fourth Proportional to 78,460.05, 117,690.08 and 48,498.15

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Solution

The fourth proportional to 78,460.05, 117,690.08 and 48,498.15 is: 72,747.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,460.05 : 117,690.08 = 48,498.15 : x
  2. Step 2: Convert to fraction form
    78,460.05/117,690.08 = 48,498.15/x
  3. Step 3: Cross multiply
    78,460.05x = 117,690.08 × 48,498.15
  4. Step 4: Simplify right side
    78,460.05x = 5,707,750,910.86
  5. Step 5: Solve for x
    x = 5,707,750,910.86/78,460.05
  6. Step 6: Final answer
    x = 72,747.23

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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.