Home / 53,102.47-79,653.91-21,513.13

Finding the Fourth Proportional to 53,102.47, 79,653.91 and 21,513.13

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Solution

The fourth proportional to 53,102.47, 79,653.91 and 21,513.13 is: 32,269.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,102.47 : 79,653.91 = 21,513.13 : x
  2. Step 2: Convert to fraction form
    53,102.47/79,653.91 = 21,513.13/x
  3. Step 3: Cross multiply
    53,102.47x = 79,653.91 × 21,513.13
  4. Step 4: Simplify right side
    53,102.47x = 1,713,604,708.26
  5. Step 5: Solve for x
    x = 1,713,604,708.26/53,102.47
  6. Step 6: Final answer
    x = 32,269.77

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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.