Home / 64,694.20-89,275.08-39,200.28

Finding the Fourth Proportional to 64,694.20, 89,275.08 and 39,200.28

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Solution

The fourth proportional to 64,694.20, 89,275.08 and 39,200.28 is: 54,094.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,694.20 : 89,275.08 = 39,200.28 : x
  2. Step 2: Convert to fraction form
    64,694.20/89,275.08 = 39,200.28/x
  3. Step 3: Cross multiply
    64,694.20x = 89,275.08 × 39,200.28
  4. Step 4: Simplify right side
    64,694.20x = 3,499,608,133.02
  5. Step 5: Solve for x
    x = 3,499,608,133.02/64,694.20
  6. Step 6: Final answer
    x = 54,094.62

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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.