Home / 65,664.38-98,498.73-21,291.50

Finding the Fourth Proportional to 65,664.38, 98,498.73 and 21,291.50

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Solution

The fourth proportional to 65,664.38, 98,498.73 and 21,291.50 is: 31,937.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,664.38 : 98,498.73 = 21,291.50 : x
  2. Step 2: Convert to fraction form
    65,664.38/98,498.73 = 21,291.50/x
  3. Step 3: Cross multiply
    65,664.38x = 98,498.73 × 21,291.50
  4. Step 4: Simplify right side
    65,664.38x = 2,097,185,709.80
  5. Step 5: Solve for x
    x = 2,097,185,709.80/65,664.38
  6. Step 6: Final answer
    x = 31,937.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.