Home / 91,706.40-126,556.13-55,402.80

Finding the Fourth Proportional to 91,706.40, 126,556.13 and 55,402.80

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Solution

The fourth proportional to 91,706.40, 126,556.13 and 55,402.80 is: 76,456.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,706.40 : 126,556.13 = 55,402.80 : x
  2. Step 2: Convert to fraction form
    91,706.40/126,556.13 = 55,402.80/x
  3. Step 3: Cross multiply
    91,706.40x = 126,556.13 × 55,402.80
  4. Step 4: Simplify right side
    91,706.40x = 7,011,563,682.15
  5. Step 5: Solve for x
    x = 7,011,563,682.15/91,706.40
  6. Step 6: Final answer
    x = 76,456.65

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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.