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Finding the Fourth Proportional to 64,539, 89,058.53 and 35,859.53

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Solution

The fourth proportional to 64,539, 89,058.53 and 35,859.53 is: 49,483.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,539 : 89,058.53 = 35,859.53 : x
  2. Step 2: Convert to fraction form
    64,539/89,058.53 = 35,859.53/x
  3. Step 3: Cross multiply
    64,539x = 89,058.53 × 35,859.53
  4. Step 4: Simplify right side
    64,539x = 3,193,596,403.70
  5. Step 5: Solve for x
    x = 3,193,596,403.70/64,539
  6. Step 6: Final answer
    x = 49,483.20

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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.