Home / 51,420.20-77,201.68-26,478.06

Finding the Fourth Proportional to 51,420.20, 77,201.68 and 26,478.06

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Solution

The fourth proportional to 51,420.20, 77,201.68 and 26,478.06 is: 39,753.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,420.20 : 77,201.68 = 26,478.06 : x
  2. Step 2: Convert to fraction form
    51,420.20/77,201.68 = 26,478.06/x
  3. Step 3: Cross multiply
    51,420.20x = 77,201.68 × 26,478.06
  4. Step 4: Simplify right side
    51,420.20x = 2,044,150,715.14
  5. Step 5: Solve for x
    x = 2,044,150,715.14/51,420.20
  6. Step 6: Final answer
    x = 39,753.85

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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.