Home / 64,729.30-89,280.43-43,208.20

Finding the Fourth Proportional to 64,729.30, 89,280.43 and 43,208.20

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Solution

The fourth proportional to 64,729.30, 89,280.43 and 43,208.20 is: 59,596.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,729.30 : 89,280.43 = 43,208.20 : x
  2. Step 2: Convert to fraction form
    64,729.30/89,280.43 = 43,208.20/x
  3. Step 3: Cross multiply
    64,729.30x = 89,280.43 × 43,208.20
  4. Step 4: Simplify right side
    64,729.30x = 3,857,646,675.53
  5. Step 5: Solve for x
    x = 3,857,646,675.53/64,729.30
  6. Step 6: Final answer
    x = 59,596.61

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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.