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Finding the Fourth Proportional to 91,937.64, 126,869.64 and 51,099.84

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Solution

The fourth proportional to 91,937.64, 126,869.64 and 51,099.84 is: 70,515.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,937.64 : 126,869.64 = 51,099.84 : x
  2. Step 2: Convert to fraction form
    91,937.64/126,869.64 = 51,099.84/x
  3. Step 3: Cross multiply
    91,937.64x = 126,869.64 × 51,099.84
  4. Step 4: Simplify right side
    91,937.64x = 6,483,018,304.86
  5. Step 5: Solve for x
    x = 6,483,018,304.86/91,937.64
  6. Step 6: Final answer
    x = 70,515.39

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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.