Home / 76,362.11-105,006.02-66,273.02

Finding the Fourth Proportional to 76,362.11, 105,006.02 and 66,273.02

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Solution

The fourth proportional to 76,362.11, 105,006.02 and 66,273.02 is: 91,132.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,362.11 : 105,006.02 = 66,273.02 : x
  2. Step 2: Convert to fraction form
    76,362.11/105,006.02 = 66,273.02/x
  3. Step 3: Cross multiply
    76,362.11x = 105,006.02 × 66,273.02
  4. Step 4: Simplify right side
    76,362.11x = 6,959,065,994.73
  5. Step 5: Solve for x
    x = 6,959,065,994.73/76,362.11
  6. Step 6: Final answer
    x = 91,132.45

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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.