Home / 77,813.72-116,722.83-30,426.89

Finding the Fourth Proportional to 77,813.72, 116,722.83 and 30,426.89

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Solution

The fourth proportional to 77,813.72, 116,722.83 and 30,426.89 is: 45,641.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,813.72 : 116,722.83 = 30,426.89 : x
  2. Step 2: Convert to fraction form
    77,813.72/116,722.83 = 30,426.89/x
  3. Step 3: Cross multiply
    77,813.72x = 116,722.83 × 30,426.89
  4. Step 4: Simplify right side
    77,813.72x = 3,551,512,708.90
  5. Step 5: Solve for x
    x = 3,551,512,708.90/77,813.72
  6. Step 6: Final answer
    x = 45,641.21

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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.