Home / 53,145.29-79,722.52-13,702.07

Finding the Fourth Proportional to 53,145.29, 79,722.52 and 13,702.07

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Solution

The fourth proportional to 53,145.29, 79,722.52 and 13,702.07 is: 20,554.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,145.29 : 79,722.52 = 13,702.07 : x
  2. Step 2: Convert to fraction form
    53,145.29/79,722.52 = 13,702.07/x
  3. Step 3: Cross multiply
    53,145.29x = 79,722.52 × 13,702.07
  4. Step 4: Simplify right side
    53,145.29x = 1,092,363,549.62
  5. Step 5: Solve for x
    x = 1,092,363,549.62/53,145.29
  6. Step 6: Final answer
    x = 20,554.29

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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.