Home / 53,019.60-79,529.20-13,576.66

Finding the Fourth Proportional to 53,019.60, 79,529.20 and 13,576.66

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Solution

The fourth proportional to 53,019.60, 79,529.20 and 13,576.66 is: 20,364.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,019.60 : 79,529.20 = 13,576.66 : x
  2. Step 2: Convert to fraction form
    53,019.60/79,529.20 = 13,576.66/x
  3. Step 3: Cross multiply
    53,019.60x = 79,529.20 × 13,576.66
  4. Step 4: Simplify right side
    53,019.60x = 1,079,740,908.47
  5. Step 5: Solve for x
    x = 1,079,740,908.47/53,019.60
  6. Step 6: Final answer
    x = 20,364.94

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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.