Home / 77,634.40-116,445.12-40,154.08

Finding the Fourth Proportional to 77,634.40, 116,445.12 and 40,154.08

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Solution

The fourth proportional to 77,634.40, 116,445.12 and 40,154.08 is: 60,227.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,634.40 : 116,445.12 = 40,154.08 : x
  2. Step 2: Convert to fraction form
    77,634.40/116,445.12 = 40,154.08/x
  3. Step 3: Cross multiply
    77,634.40x = 116,445.12 × 40,154.08
  4. Step 4: Simplify right side
    77,634.40x = 4,675,746,664.09
  5. Step 5: Solve for x
    x = 4,675,746,664.09/77,634.40
  6. Step 6: Final answer
    x = 60,227.77

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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.