Home / 51,139.20-76,608.36-45,566.40

Finding the Fourth Proportional to 51,139.20, 76,608.36 and 45,566.40

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Solution

The fourth proportional to 51,139.20, 76,608.36 and 45,566.40 is: 68,260.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,139.20 : 76,608.36 = 45,566.40 : x
  2. Step 2: Convert to fraction form
    51,139.20/76,608.36 = 45,566.40/x
  3. Step 3: Cross multiply
    51,139.20x = 76,608.36 × 45,566.40
  4. Step 4: Simplify right side
    51,139.20x = 3,490,767,175.10
  5. Step 5: Solve for x
    x = 3,490,767,175.10/51,139.20
  6. Step 6: Final answer
    x = 68,260.11

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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.