Home / 77,948.20-117,008.70-48,399.40

Finding the Fourth Proportional to 77,948.20, 117,008.70 and 48,399.40

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Solution

The fourth proportional to 77,948.20, 117,008.70 and 48,399.40 is: 72,652.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,948.20 : 117,008.70 = 48,399.40 : x
  2. Step 2: Convert to fraction form
    77,948.20/117,008.70 = 48,399.40/x
  3. Step 3: Cross multiply
    77,948.20x = 117,008.70 × 48,399.40
  4. Step 4: Simplify right side
    77,948.20x = 5,663,150,874.78
  5. Step 5: Solve for x
    x = 5,663,150,874.78/77,948.20
  6. Step 6: Final answer
    x = 72,652.75

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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.