Home / 75,543.18-104,258.16-43,280.88

Finding the Fourth Proportional to 75,543.18, 104,258.16 and 43,280.88

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Solution

The fourth proportional to 75,543.18, 104,258.16 and 43,280.88 is: 59,732.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,543.18 : 104,258.16 = 43,280.88 : x
  2. Step 2: Convert to fraction form
    75,543.18/104,258.16 = 43,280.88/x
  3. Step 3: Cross multiply
    75,543.18x = 104,258.16 × 43,280.88
  4. Step 4: Simplify right side
    75,543.18x = 4,512,384,911.98
  5. Step 5: Solve for x
    x = 4,512,384,911.98/75,543.18
  6. Step 6: Final answer
    x = 59,732.53

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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.