Home / 78,320.84-117,530.68-33,342.12

Finding the Fourth Proportional to 78,320.84, 117,530.68 and 33,342.12

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Solution

The fourth proportional to 78,320.84, 117,530.68 and 33,342.12 is: 50,034.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,320.84 : 117,530.68 = 33,342.12 : x
  2. Step 2: Convert to fraction form
    78,320.84/117,530.68 = 33,342.12/x
  3. Step 3: Cross multiply
    78,320.84x = 117,530.68 × 33,342.12
  4. Step 4: Simplify right side
    78,320.84x = 3,918,722,036.24
  5. Step 5: Solve for x
    x = 3,918,722,036.24/78,320.84
  6. Step 6: Final answer
    x = 50,034.22

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1.5x scale

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.