Home / 74,690.28-103,077.68-45,631.08

Finding the Fourth Proportional to 74,690.28, 103,077.68 and 45,631.08

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Solution

The fourth proportional to 74,690.28, 103,077.68 and 45,631.08 is: 62,974.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,690.28 : 103,077.68 = 45,631.08 : x
  2. Step 2: Convert to fraction form
    74,690.28/103,077.68 = 45,631.08/x
  3. Step 3: Cross multiply
    74,690.28x = 103,077.68 × 45,631.08
  4. Step 4: Simplify right side
    74,690.28x = 4,703,545,634.14
  5. Step 5: Solve for x
    x = 4,703,545,634.14/74,690.28
  6. Step 6: Final answer
    x = 62,974.00

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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.