Home / 74,701.28-103,055.10-49,174.76

Finding the Fourth Proportional to 74,701.28, 103,055.10 and 49,174.76

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Solution

The fourth proportional to 74,701.28, 103,055.10 and 49,174.76 is: 67,839.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,701.28 : 103,055.10 = 49,174.76 : x
  2. Step 2: Convert to fraction form
    74,701.28/103,055.10 = 49,174.76/x
  3. Step 3: Cross multiply
    74,701.28x = 103,055.10 × 49,174.76
  4. Step 4: Simplify right side
    74,701.28x = 5,067,709,809.28
  5. Step 5: Solve for x
    x = 5,067,709,809.28/74,701.28
  6. Step 6: Final answer
    x = 67,839.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.