Home / 53,135.19-79,690.05-15,685.11

Finding the Fourth Proportional to 53,135.19, 79,690.05 and 15,685.11

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Solution

The fourth proportional to 53,135.19, 79,690.05 and 15,685.11 is: 23,523.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,135.19 : 79,690.05 = 15,685.11 : x
  2. Step 2: Convert to fraction form
    53,135.19/79,690.05 = 15,685.11/x
  3. Step 3: Cross multiply
    53,135.19x = 79,690.05 × 15,685.11
  4. Step 4: Simplify right side
    53,135.19x = 1,249,947,200.16
  5. Step 5: Solve for x
    x = 1,249,947,200.16/53,135.19
  6. Step 6: Final answer
    x = 23,523.91

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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.