Home / 53,318.68-79,988.82-15,879.40

Finding the Fourth Proportional to 53,318.68, 79,988.82 and 15,879.40

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Solution

The fourth proportional to 53,318.68, 79,988.82 and 15,879.40 is: 23,822.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,318.68 : 79,988.82 = 15,879.40 : x
  2. Step 2: Convert to fraction form
    53,318.68/79,988.82 = 15,879.40/x
  3. Step 3: Cross multiply
    53,318.68x = 79,988.82 × 15,879.40
  4. Step 4: Simplify right side
    53,318.68x = 1,270,174,468.31
  5. Step 5: Solve for x
    x = 1,270,174,468.31/53,318.68
  6. Step 6: Final answer
    x = 23,822.32

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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.