Home / 80,881.40-121,322.10-41,515.40

Finding the Fourth Proportional to 80,881.40, 121,322.10 and 41,515.40

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Solution

The fourth proportional to 80,881.40, 121,322.10 and 41,515.40 is: 62,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,881.40 : 121,322.10 = 41,515.40 : x
  2. Step 2: Convert to fraction form
    80,881.40/121,322.10 = 41,515.40/x
  3. Step 3: Cross multiply
    80,881.40x = 121,322.10 × 41,515.40
  4. Step 4: Simplify right side
    80,881.40x = 5,036,735,510.34
  5. Step 5: Solve for x
    x = 5,036,735,510.34/80,881.40
  6. Step 6: Final answer
    x = 62,273.10

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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.