Home / 43,036.40-64,549.46-11,448.78

Finding the Fourth Proportional to 43,036.40, 64,549.46 and 11,448.78

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Solution

The fourth proportional to 43,036.40, 64,549.46 and 11,448.78 is: 17,171.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,036.40 : 64,549.46 = 11,448.78 : x
  2. Step 2: Convert to fraction form
    43,036.40/64,549.46 = 11,448.78/x
  3. Step 3: Cross multiply
    43,036.40x = 64,549.46 × 11,448.78
  4. Step 4: Simplify right side
    43,036.40x = 739,012,288.82
  5. Step 5: Solve for x
    x = 739,012,288.82/43,036.40
  6. Step 6: Final answer
    x = 17,171.80

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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.