Home / 65,668.19-98,516.12-21,291.49

Finding the Fourth Proportional to 65,668.19, 98,516.12 and 21,291.49

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Solution

The fourth proportional to 65,668.19, 98,516.12 and 21,291.49 is: 31,941.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,668.19 : 98,516.12 = 21,291.49 : x
  2. Step 2: Convert to fraction form
    65,668.19/98,516.12 = 21,291.49/x
  3. Step 3: Cross multiply
    65,668.19x = 98,516.12 × 21,291.49
  4. Step 4: Simplify right side
    65,668.19x = 2,097,555,000.51
  5. Step 5: Solve for x
    x = 2,097,555,000.51/65,668.19
  6. Step 6: Final answer
    x = 31,941.72

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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.