Home / 77,966.52-116,984.34-28,707

Finding the Fourth Proportional to 77,966.52, 116,984.34 and 28,707

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Solution

The fourth proportional to 77,966.52, 116,984.34 and 28,707 is: 43,073.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,966.52 : 116,984.34 = 28,707 : x
  2. Step 2: Convert to fraction form
    77,966.52/116,984.34 = 28,707/x
  3. Step 3: Cross multiply
    77,966.52x = 116,984.34 × 28,707
  4. Step 4: Simplify right side
    77,966.52x = 3,358,269,448.38
  5. Step 5: Solve for x
    x = 3,358,269,448.38/77,966.52
  6. Step 6: Final answer
    x = 43,073.22

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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.