Home / 75,809.04-113,538.48-42,479.28

Finding the Fourth Proportional to 75,809.04, 113,538.48 and 42,479.28

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Solution

The fourth proportional to 75,809.04, 113,538.48 and 42,479.28 is: 63,620.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,809.04 : 113,538.48 = 42,479.28 : x
  2. Step 2: Convert to fraction form
    75,809.04/113,538.48 = 42,479.28/x
  3. Step 3: Cross multiply
    75,809.04x = 113,538.48 × 42,479.28
  4. Step 4: Simplify right side
    75,809.04x = 4,823,032,882.69
  5. Step 5: Solve for x
    x = 4,823,032,882.69/75,809.04
  6. Step 6: Final answer
    x = 63,620.81

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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.