Home / 80,731.85-121,097.85-38,602.02

Finding the Fourth Proportional to 80,731.85, 121,097.85 and 38,602.02

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Solution

The fourth proportional to 80,731.85, 121,097.85 and 38,602.02 is: 57,903.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,731.85 : 121,097.85 = 38,602.02 : x
  2. Step 2: Convert to fraction form
    80,731.85/121,097.85 = 38,602.02/x
  3. Step 3: Cross multiply
    80,731.85x = 121,097.85 × 38,602.02
  4. Step 4: Simplify right side
    80,731.85x = 4,674,621,627.66
  5. Step 5: Solve for x
    x = 4,674,621,627.66/80,731.85
  6. Step 6: Final answer
    x = 57,903.07

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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.