Home / 77,512.08-116,280.30-33,139.07

Finding the Fourth Proportional to 77,512.08, 116,280.30 and 33,139.07

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Solution

The fourth proportional to 77,512.08, 116,280.30 and 33,139.07 is: 49,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,512.08 : 116,280.30 = 33,139.07 : x
  2. Step 2: Convert to fraction form
    77,512.08/116,280.30 = 33,139.07/x
  3. Step 3: Cross multiply
    77,512.08x = 116,280.30 × 33,139.07
  4. Step 4: Simplify right side
    77,512.08x = 3,853,420,419.92
  5. Step 5: Solve for x
    x = 3,853,420,419.92/77,512.08
  6. Step 6: Final answer
    x = 49,713.80

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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.