Home / 52,140.41-78,222.00-18,857.00

Finding the Fourth Proportional to 52,140.41, 78,222.00 and 18,857.00

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Solution

The fourth proportional to 52,140.41, 78,222.00 and 18,857.00 is: 28,289.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,140.41 : 78,222.00 = 18,857.00 : x
  2. Step 2: Convert to fraction form
    52,140.41/78,222.00 = 18,857.00/x
  3. Step 3: Cross multiply
    52,140.41x = 78,222.00 × 18,857.00
  4. Step 4: Simplify right side
    52,140.41x = 1,475,031,768.61
  5. Step 5: Solve for x
    x = 1,475,031,768.61/52,140.41
  6. Step 6: Final answer
    x = 28,289.61

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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.