Home / 91,328.82-126,033.47-51,042.61

Finding the Fourth Proportional to 91,328.82, 126,033.47 and 51,042.61

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Solution

The fourth proportional to 91,328.82, 126,033.47 and 51,042.61 is: 70,438.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,328.82 : 126,033.47 = 51,042.61 : x
  2. Step 2: Convert to fraction form
    91,328.82/126,033.47 = 51,042.61/x
  3. Step 3: Cross multiply
    91,328.82x = 126,033.47 × 51,042.61
  4. Step 4: Simplify right side
    91,328.82x = 6,433,076,640.96
  5. Step 5: Solve for x
    x = 6,433,076,640.96/91,328.82
  6. Step 6: Final answer
    x = 70,438.63

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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.