Home / 78,233.02-107,933.27-51,390.14

Finding the Fourth Proportional to 78,233.02, 107,933.27 and 51,390.14

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Solution

The fourth proportional to 78,233.02, 107,933.27 and 51,390.14 is: 70,899.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,233.02 : 107,933.27 = 51,390.14 : x
  2. Step 2: Convert to fraction form
    78,233.02/107,933.27 = 51,390.14/x
  3. Step 3: Cross multiply
    78,233.02x = 107,933.27 × 51,390.14
  4. Step 4: Simplify right side
    78,233.02x = 5,546,705,855.96
  5. Step 5: Solve for x
    x = 5,546,705,855.96/78,233.02
  6. Step 6: Final answer
    x = 70,899.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.