Home / 51,090-70,493.46-29,865.12

Finding the Fourth Proportional to 51,090, 70,493.46 and 29,865.12

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Solution

The fourth proportional to 51,090, 70,493.46 and 29,865.12 is: 41,207.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,090 : 70,493.46 = 29,865.12 : x
  2. Step 2: Convert to fraction form
    51,090/70,493.46 = 29,865.12/x
  3. Step 3: Cross multiply
    51,090x = 70,493.46 × 29,865.12
  4. Step 4: Simplify right side
    51,090x = 2,105,295,642.12
  5. Step 5: Solve for x
    x = 2,105,295,642.12/51,090
  6. Step 6: Final answer
    x = 41,207.59

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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.