Home / 74,969.30-112,398.39-45,380.13

Finding the Fourth Proportional to 74,969.30, 112,398.39 and 45,380.13

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Solution

The fourth proportional to 74,969.30, 112,398.39 and 45,380.13 is: 68,036.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,969.30 : 112,398.39 = 45,380.13 : x
  2. Step 2: Convert to fraction form
    74,969.30/112,398.39 = 45,380.13/x
  3. Step 3: Cross multiply
    74,969.30x = 112,398.39 × 45,380.13
  4. Step 4: Simplify right side
    74,969.30x = 5,100,653,549.99
  5. Step 5: Solve for x
    x = 5,100,653,549.99/74,969.30
  6. Step 6: Final answer
    x = 68,036.57

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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.