Home / 84,431.63-126,691.09-37,080

Finding the Fourth Proportional to 84,431.63, 126,691.09 and 37,080

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Solution

The fourth proportional to 84,431.63, 126,691.09 and 37,080 is: 55,639.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,431.63 : 126,691.09 = 37,080 : x
  2. Step 2: Convert to fraction form
    84,431.63/126,691.09 = 37,080/x
  3. Step 3: Cross multiply
    84,431.63x = 126,691.09 × 37,080
  4. Step 4: Simplify right side
    84,431.63x = 4,697,705,617.20
  5. Step 5: Solve for x
    x = 4,697,705,617.20/84,431.63
  6. Step 6: Final answer
    x = 55,639.17

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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.