Home / 77,924.26-117,097.42-42,411.84

Finding the Fourth Proportional to 77,924.26, 117,097.42 and 42,411.84

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Solution

The fourth proportional to 77,924.26, 117,097.42 and 42,411.84 is: 63,732.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,924.26 : 117,097.42 = 42,411.84 : x
  2. Step 2: Convert to fraction form
    77,924.26/117,097.42 = 42,411.84/x
  3. Step 3: Cross multiply
    77,924.26x = 117,097.42 × 42,411.84
  4. Step 4: Simplify right side
    77,924.26x = 4,966,317,041.45
  5. Step 5: Solve for x
    x = 4,966,317,041.45/77,924.26
  6. Step 6: Final answer
    x = 63,732.62

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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.