Home / 53,073.12-79,619.40-21,891.36

Finding the Fourth Proportional to 53,073.12, 79,619.40 and 21,891.36

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Solution

The fourth proportional to 53,073.12, 79,619.40 and 21,891.36 is: 32,841.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,073.12 : 79,619.40 = 21,891.36 : x
  2. Step 2: Convert to fraction form
    53,073.12/79,619.40 = 21,891.36/x
  3. Step 3: Cross multiply
    53,073.12x = 79,619.40 × 21,891.36
  4. Step 4: Simplify right side
    53,073.12x = 1,742,976,948.38
  5. Step 5: Solve for x
    x = 1,742,976,948.38/53,073.12
  6. Step 6: Final answer
    x = 32,841.05

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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.