Home / 78,929.04-108,922-45,395.04

Finding the Fourth Proportional to 78,929.04, 108,922 and 45,395.04

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Solution

The fourth proportional to 78,929.04, 108,922 and 45,395.04 is: 62,645.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,929.04 : 108,922 = 45,395.04 : x
  2. Step 2: Convert to fraction form
    78,929.04/108,922 = 45,395.04/x
  3. Step 3: Cross multiply
    78,929.04x = 108,922 × 45,395.04
  4. Step 4: Simplify right side
    78,929.04x = 4,944,518,546.88
  5. Step 5: Solve for x
    x = 4,944,518,546.88/78,929.04
  6. Step 6: Final answer
    x = 62,645.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.