Home / 91,927.34-126,749.36-66,392.90

Finding the Fourth Proportional to 91,927.34, 126,749.36 and 66,392.90

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Solution

The fourth proportional to 91,927.34, 126,749.36 and 66,392.90 is: 91,542.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,927.34 : 126,749.36 = 66,392.90 : x
  2. Step 2: Convert to fraction form
    91,927.34/126,749.36 = 66,392.90/x
  3. Step 3: Cross multiply
    91,927.34x = 126,749.36 × 66,392.90
  4. Step 4: Simplify right side
    91,927.34x = 8,415,257,217.63
  5. Step 5: Solve for x
    x = 8,415,257,217.63/91,927.34
  6. Step 6: Final answer
    x = 91,542.49

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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.