Home / 77,613.76-116,418.25-21,457.27

Finding the Fourth Proportional to 77,613.76, 116,418.25 and 21,457.27

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Solution

The fourth proportional to 77,613.76, 116,418.25 and 21,457.27 is: 32,185.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,613.76 : 116,418.25 = 21,457.27 : x
  2. Step 2: Convert to fraction form
    77,613.76/116,418.25 = 21,457.27/x
  3. Step 3: Cross multiply
    77,613.76x = 116,418.25 × 21,457.27
  4. Step 4: Simplify right side
    77,613.76x = 2,498,017,823.18
  5. Step 5: Solve for x
    x = 2,498,017,823.18/77,613.76
  6. Step 6: Final answer
    x = 32,185.24

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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.