Home / 53,022.81-79,534.85-13,578.87

Finding the Fourth Proportional to 53,022.81, 79,534.85 and 13,578.87

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Solution

The fourth proportional to 53,022.81, 79,534.85 and 13,578.87 is: 20,368.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,022.81 : 79,534.85 = 13,578.87 : x
  2. Step 2: Convert to fraction form
    53,022.81/79,534.85 = 13,578.87/x
  3. Step 3: Cross multiply
    53,022.81x = 79,534.85 × 13,578.87
  4. Step 4: Simplify right side
    53,022.81x = 1,079,993,320.73
  5. Step 5: Solve for x
    x = 1,079,993,320.73/53,022.81
  6. Step 6: Final answer
    x = 20,368.47

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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.