Home / 53,306.40-79,945.65-15,856.38

Finding the Fourth Proportional to 53,306.40, 79,945.65 and 15,856.38

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Solution

The fourth proportional to 53,306.40, 79,945.65 and 15,856.38 is: 23,780.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,306.40 : 79,945.65 = 15,856.38 : x
  2. Step 2: Convert to fraction form
    53,306.40/79,945.65 = 15,856.38/x
  3. Step 3: Cross multiply
    53,306.40x = 79,945.65 × 15,856.38
  4. Step 4: Simplify right side
    53,306.40x = 1,267,648,605.75
  5. Step 5: Solve for x
    x = 1,267,648,605.75/53,306.40
  6. Step 6: Final answer
    x = 23,780.42

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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.