Home / 81,073.09-121,527.01-45,938.53

Finding the Fourth Proportional to 81,073.09, 121,527.01 and 45,938.53

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Solution

The fourth proportional to 81,073.09, 121,527.01 and 45,938.53 is: 68,860.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,073.09 : 121,527.01 = 45,938.53 : x
  2. Step 2: Convert to fraction form
    81,073.09/121,527.01 = 45,938.53/x
  3. Step 3: Cross multiply
    81,073.09x = 121,527.01 × 45,938.53
  4. Step 4: Simplify right side
    81,073.09x = 5,582,772,194.70
  5. Step 5: Solve for x
    x = 5,582,772,194.70/81,073.09
  6. Step 6: Final answer
    x = 68,860.98

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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.