Home / 77,878.07-116,826.82-30,487.04

Finding the Fourth Proportional to 77,878.07, 116,826.82 and 30,487.04

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Solution

The fourth proportional to 77,878.07, 116,826.82 and 30,487.04 is: 45,734.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,878.07 : 116,826.82 = 30,487.04 : x
  2. Step 2: Convert to fraction form
    77,878.07/116,826.82 = 30,487.04/x
  3. Step 3: Cross multiply
    77,878.07x = 116,826.82 × 30,487.04
  4. Step 4: Simplify right side
    77,878.07x = 3,561,703,274.06
  5. Step 5: Solve for x
    x = 3,561,703,274.06/77,878.07
  6. Step 6: Final answer
    x = 45,734.36

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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.