Home / 84,929.87-117,214.58-54,802.78

Finding the Fourth Proportional to 84,929.87, 117,214.58 and 54,802.78

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Solution

The fourth proportional to 84,929.87, 117,214.58 and 54,802.78 is: 75,635.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,929.87 : 117,214.58 = 54,802.78 : x
  2. Step 2: Convert to fraction form
    84,929.87/117,214.58 = 54,802.78/x
  3. Step 3: Cross multiply
    84,929.87x = 117,214.58 × 54,802.78
  4. Step 4: Simplify right side
    84,929.87x = 6,423,684,254.46
  5. Step 5: Solve for x
    x = 6,423,684,254.46/84,929.87
  6. Step 6: Final answer
    x = 75,635.16

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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.