Home / 42,844.81-64,266.52-11,680.06

Finding the Fourth Proportional to 42,844.81, 64,266.52 and 11,680.06

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Solution

The fourth proportional to 42,844.81, 64,266.52 and 11,680.06 is: 17,519.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,844.81 : 64,266.52 = 11,680.06 : x
  2. Step 2: Convert to fraction form
    42,844.81/64,266.52 = 11,680.06/x
  3. Step 3: Cross multiply
    42,844.81x = 64,266.52 × 11,680.06
  4. Step 4: Simplify right side
    42,844.81x = 750,636,614.23
  5. Step 5: Solve for x
    x = 750,636,614.23/42,844.81
  6. Step 6: Final answer
    x = 17,519.90

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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.