Home / 53,019.81-79,530.35-13,575.87

Finding the Fourth Proportional to 53,019.81, 79,530.35 and 13,575.87

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Solution

The fourth proportional to 53,019.81, 79,530.35 and 13,575.87 is: 20,363.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,019.81 : 79,530.35 = 13,575.87 : x
  2. Step 2: Convert to fraction form
    53,019.81/79,530.35 = 13,575.87/x
  3. Step 3: Cross multiply
    53,019.81x = 79,530.35 × 13,575.87
  4. Step 4: Simplify right side
    53,019.81x = 1,079,693,624.78
  5. Step 5: Solve for x
    x = 1,079,693,624.78/53,019.81
  6. Step 6: Final answer
    x = 20,363.97

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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.