Home / 91,877.36-126,786.67-51,590.39

Finding the Fourth Proportional to 91,877.36, 126,786.67 and 51,590.39

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Solution

The fourth proportional to 91,877.36, 126,786.67 and 51,590.39 is: 71,192.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,877.36 : 126,786.67 = 51,590.39 : x
  2. Step 2: Convert to fraction form
    91,877.36/126,786.67 = 51,590.39/x
  3. Step 3: Cross multiply
    91,877.36x = 126,786.67 × 51,590.39
  4. Step 4: Simplify right side
    91,877.36x = 6,540,972,989.19
  5. Step 5: Solve for x
    x = 6,540,972,989.19/91,877.36
  6. Step 6: Final answer
    x = 71,192.44

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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.