Home / 53,120.31-79,689.12-15,684.17

Finding the Fourth Proportional to 53,120.31, 79,689.12 and 15,684.17

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Solution

The fourth proportional to 53,120.31, 79,689.12 and 15,684.17 is: 23,528.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,120.31 : 79,689.12 = 15,684.17 : x
  2. Step 2: Convert to fraction form
    53,120.31/79,689.12 = 15,684.17/x
  3. Step 3: Cross multiply
    53,120.31x = 79,689.12 × 15,684.17
  4. Step 4: Simplify right side
    53,120.31x = 1,249,857,582.65
  5. Step 5: Solve for x
    x = 1,249,857,582.65/53,120.31
  6. Step 6: Final answer
    x = 23,528.81

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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.