Home / 53,115.28-79,686.59-15,673.84

Finding the Fourth Proportional to 53,115.28, 79,686.59 and 15,673.84

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Solution

The fourth proportional to 53,115.28, 79,686.59 and 15,673.84 is: 23,514.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,115.28 : 79,686.59 = 15,673.84 : x
  2. Step 2: Convert to fraction form
    53,115.28/79,686.59 = 15,673.84/x
  3. Step 3: Cross multiply
    53,115.28x = 79,686.59 × 15,673.84
  4. Step 4: Simplify right side
    53,115.28x = 1,248,994,861.81
  5. Step 5: Solve for x
    x = 1,248,994,861.81/53,115.28
  6. Step 6: Final answer
    x = 23,514.79

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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.