Home / 77,984.12-116,976.16-30,621.50

Finding the Fourth Proportional to 77,984.12, 116,976.16 and 30,621.50

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Solution

The fourth proportional to 77,984.12, 116,976.16 and 30,621.50 is: 45,932.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,984.12 : 116,976.16 = 30,621.50 : x
  2. Step 2: Convert to fraction form
    77,984.12/116,976.16 = 30,621.50/x
  3. Step 3: Cross multiply
    77,984.12x = 116,976.16 × 30,621.50
  4. Step 4: Simplify right side
    77,984.12x = 3,581,985,699.33
  5. Step 5: Solve for x
    x = 3,581,985,699.33/77,984.12
  6. Step 6: Final answer
    x = 45,932.24

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Similar ratio
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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.