Home / 51,639.20-77,458.80-49,047.20

Finding the Fourth Proportional to 51,639.20, 77,458.80 and 49,047.20

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Solution

The fourth proportional to 51,639.20, 77,458.80 and 49,047.20 is: 73,570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,639.20 : 77,458.80 = 49,047.20 : x
  2. Step 2: Convert to fraction form
    51,639.20/77,458.80 = 49,047.20/x
  3. Step 3: Cross multiply
    51,639.20x = 77,458.80 × 49,047.20
  4. Step 4: Simplify right side
    51,639.20x = 3,799,137,255.36
  5. Step 5: Solve for x
    x = 3,799,137,255.36/51,639.20
  6. Step 6: Final answer
    x = 73,570.80

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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.