Home / 77,977.11-116,948.42-21,802.11

Finding the Fourth Proportional to 77,977.11, 116,948.42 and 21,802.11

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Solution

The fourth proportional to 77,977.11, 116,948.42 and 21,802.11 is: 32,698.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,977.11 : 116,948.42 = 21,802.11 : x
  2. Step 2: Convert to fraction form
    77,977.11/116,948.42 = 21,802.11/x
  3. Step 3: Cross multiply
    77,977.11x = 116,948.42 × 21,802.11
  4. Step 4: Simplify right side
    77,977.11x = 2,549,722,317.17
  5. Step 5: Solve for x
    x = 2,549,722,317.17/77,977.11
  6. Step 6: Final answer
    x = 32,698.34

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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.