Home / 91,964.31-126,913.01-51,675.66

Finding the Fourth Proportional to 91,964.31, 126,913.01 and 51,675.66

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Solution

The fourth proportional to 91,964.31, 126,913.01 and 51,675.66 is: 71,313.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,964.31 : 126,913.01 = 51,675.66 : x
  2. Step 2: Convert to fraction form
    91,964.31/126,913.01 = 51,675.66/x
  3. Step 3: Cross multiply
    91,964.31x = 126,913.01 × 51,675.66
  4. Step 4: Simplify right side
    91,964.31x = 6,558,313,295.96
  5. Step 5: Solve for x
    x = 6,558,313,295.96/91,964.31
  6. Step 6: Final answer
    x = 71,313.68

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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.