Home / 91,671.54-126,507.51-51,385.38

Finding the Fourth Proportional to 91,671.54, 126,507.51 and 51,385.38

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Solution

The fourth proportional to 91,671.54, 126,507.51 and 51,385.38 is: 70,912.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,671.54 : 126,507.51 = 51,385.38 : x
  2. Step 2: Convert to fraction form
    91,671.54/126,507.51 = 51,385.38/x
  3. Step 3: Cross multiply
    91,671.54x = 126,507.51 × 51,385.38
  4. Step 4: Simplify right side
    91,671.54x = 6,500,636,474.20
  5. Step 5: Solve for x
    x = 6,500,636,474.20/91,671.54
  6. Step 6: Final answer
    x = 70,912.26

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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.