Home / 91,985.36-126,939.60-51,700.76

Finding the Fourth Proportional to 91,985.36, 126,939.60 and 51,700.76

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Solution

The fourth proportional to 91,985.36, 126,939.60 and 51,700.76 is: 71,346.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,985.36 : 126,939.60 = 51,700.76 : x
  2. Step 2: Convert to fraction form
    91,985.36/126,939.60 = 51,700.76/x
  3. Step 3: Cross multiply
    91,985.36x = 126,939.60 × 51,700.76
  4. Step 4: Simplify right side
    91,985.36x = 6,562,873,794.10
  5. Step 5: Solve for x
    x = 6,562,873,794.10/91,985.36
  6. Step 6: Final answer
    x = 71,346.94

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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.