Home / 75,431.16-104,113.71-43,618.50

Finding the Fourth Proportional to 75,431.16, 104,113.71 and 43,618.50

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Solution

The fourth proportional to 75,431.16, 104,113.71 and 43,618.50 is: 60,204.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,431.16 : 104,113.71 = 43,618.50 : x
  2. Step 2: Convert to fraction form
    75,431.16/104,113.71 = 43,618.50/x
  3. Step 3: Cross multiply
    75,431.16x = 104,113.71 × 43,618.50
  4. Step 4: Simplify right side
    75,431.16x = 4,541,283,859.64
  5. Step 5: Solve for x
    x = 4,541,283,859.64/75,431.16
  6. Step 6: Final answer
    x = 60,204.35

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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.