Home / 70,223.40-96,930.18-57,781.80

Finding the Fourth Proportional to 70,223.40, 96,930.18 and 57,781.80

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Solution

The fourth proportional to 70,223.40, 96,930.18 and 57,781.80 is: 79,756.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,223.40 : 96,930.18 = 57,781.80 : x
  2. Step 2: Convert to fraction form
    70,223.40/96,930.18 = 57,781.80/x
  3. Step 3: Cross multiply
    70,223.40x = 96,930.18 × 57,781.80
  4. Step 4: Simplify right side
    70,223.40x = 5,600,800,274.72
  5. Step 5: Solve for x
    x = 5,600,800,274.72/70,223.40
  6. Step 6: Final answer
    x = 79,756.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.