Home / 51,348.20-77,022.30-40,980.20

Finding the Fourth Proportional to 51,348.20, 77,022.30 and 40,980.20

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Solution

The fourth proportional to 51,348.20, 77,022.30 and 40,980.20 is: 61,470.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,348.20 : 77,022.30 = 40,980.20 : x
  2. Step 2: Convert to fraction form
    51,348.20/77,022.30 = 40,980.20/x
  3. Step 3: Cross multiply
    51,348.20x = 77,022.30 × 40,980.20
  4. Step 4: Simplify right side
    51,348.20x = 3,156,389,258.46
  5. Step 5: Solve for x
    x = 3,156,389,258.46/51,348.20
  6. Step 6: Final answer
    x = 61,470.30

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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.