Home / 49,977.20-74,965.80-13,041.20

Finding the Fourth Proportional to 49,977.20, 74,965.80 and 13,041.20

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Solution

The fourth proportional to 49,977.20, 74,965.80 and 13,041.20 is: 19,561.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,977.20 : 74,965.80 = 13,041.20 : x
  2. Step 2: Convert to fraction form
    49,977.20/74,965.80 = 13,041.20/x
  3. Step 3: Cross multiply
    49,977.20x = 74,965.80 × 13,041.20
  4. Step 4: Simplify right side
    49,977.20x = 977,643,616.13
  5. Step 5: Solve for x
    x = 977,643,616.13/49,977.20
  6. Step 6: Final answer
    x = 19,561.79

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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.