Home / 91,636.21-126,465.06-51,353.72

Finding the Fourth Proportional to 91,636.21, 126,465.06 and 51,353.72

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Solution

The fourth proportional to 91,636.21, 126,465.06 and 51,353.72 is: 70,872.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,636.21 : 126,465.06 = 51,353.72 : x
  2. Step 2: Convert to fraction form
    91,636.21/126,465.06 = 51,353.72/x
  3. Step 3: Cross multiply
    91,636.21x = 126,465.06 × 51,353.72
  4. Step 4: Simplify right side
    91,636.21x = 6,494,451,281.02
  5. Step 5: Solve for x
    x = 6,494,451,281.02/91,636.21
  6. Step 6: Final answer
    x = 70,872.11

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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.