Home / 77,880.07-116,829.82-30,489.04

Finding the Fourth Proportional to 77,880.07, 116,829.82 and 30,489.04

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Solution

The fourth proportional to 77,880.07, 116,829.82 and 30,489.04 is: 45,737.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,880.07 : 116,829.82 = 30,489.04 : x
  2. Step 2: Convert to fraction form
    77,880.07/116,829.82 = 30,489.04/x
  3. Step 3: Cross multiply
    77,880.07x = 116,829.82 × 30,489.04
  4. Step 4: Simplify right side
    77,880.07x = 3,562,029,055.17
  5. Step 5: Solve for x
    x = 3,562,029,055.17/77,880.07
  6. Step 6: Final answer
    x = 45,737.36

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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.