Home / 65,663.38-98,497.23-21,290.50

Finding the Fourth Proportional to 65,663.38, 98,497.23 and 21,290.50

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Solution

The fourth proportional to 65,663.38, 98,497.23 and 21,290.50 is: 31,936.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,663.38 : 98,497.23 = 21,290.50 : x
  2. Step 2: Convert to fraction form
    65,663.38/98,497.23 = 21,290.50/x
  3. Step 3: Cross multiply
    65,663.38x = 98,497.23 × 21,290.50
  4. Step 4: Simplify right side
    65,663.38x = 2,097,055,275.32
  5. Step 5: Solve for x
    x = 2,097,055,275.32/65,663.38
  6. Step 6: Final answer
    x = 31,936.45

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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.