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Finding the Fourth Proportional to 64,693.08, 89,275.16 and 36,398.57

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Solution

The fourth proportional to 64,693.08, 89,275.16 and 36,398.57 is: 50,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,693.08 : 89,275.16 = 36,398.57 : x
  2. Step 2: Convert to fraction form
    64,693.08/89,275.16 = 36,398.57/x
  3. Step 3: Cross multiply
    64,693.08x = 89,275.16 × 36,398.57
  4. Step 4: Simplify right side
    64,693.08x = 3,249,487,805.14
  5. Step 5: Solve for x
    x = 3,249,487,805.14/64,693.08
  6. Step 6: Final answer
    x = 50,229.30

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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.