Home / 52,580.69-78,871.20-13,137.81

Finding the Fourth Proportional to 52,580.69, 78,871.20 and 13,137.81

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Solution

The fourth proportional to 52,580.69, 78,871.20 and 13,137.81 is: 19,706.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,580.69 : 78,871.20 = 13,137.81 : x
  2. Step 2: Convert to fraction form
    52,580.69/78,871.20 = 13,137.81/x
  3. Step 3: Cross multiply
    52,580.69x = 78,871.20 × 13,137.81
  4. Step 4: Simplify right side
    52,580.69x = 1,036,194,840.07
  5. Step 5: Solve for x
    x = 1,036,194,840.07/52,580.69
  6. Step 6: Final answer
    x = 19,706.76

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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.