Home / 76,767.02-115,101.32-53,008

Finding the Fourth Proportional to 76,767.02, 115,101.32 and 53,008

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Solution

The fourth proportional to 76,767.02, 115,101.32 and 53,008 is: 79,478.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,767.02 : 115,101.32 = 53,008 : x
  2. Step 2: Convert to fraction form
    76,767.02/115,101.32 = 53,008/x
  3. Step 3: Cross multiply
    76,767.02x = 115,101.32 × 53,008
  4. Step 4: Simplify right side
    76,767.02x = 6,101,290,770.56
  5. Step 5: Solve for x
    x = 6,101,290,770.56/76,767.02
  6. Step 6: Final answer
    x = 79,478.02

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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.