Home / 52,171.02-78,262.71-18,906.78

Finding the Fourth Proportional to 52,171.02, 78,262.71 and 18,906.78

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Solution

The fourth proportional to 52,171.02, 78,262.71 and 18,906.78 is: 28,362.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,171.02 : 78,262.71 = 18,906.78 : x
  2. Step 2: Convert to fraction form
    52,171.02/78,262.71 = 18,906.78/x
  3. Step 3: Cross multiply
    52,171.02x = 78,262.71 × 18,906.78
  4. Step 4: Simplify right side
    52,171.02x = 1,479,695,840.17
  5. Step 5: Solve for x
    x = 1,479,695,840.17/52,171.02
  6. Step 6: Final answer
    x = 28,362.41

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1.5x scale

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.