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Finding the Fourth Proportional to 91,207.50, 125,866.35 and 51,463.50

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Solution

The fourth proportional to 91,207.50, 125,866.35 and 51,463.50 is: 71,019.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,207.50 : 125,866.35 = 51,463.50 : x
  2. Step 2: Convert to fraction form
    91,207.50/125,866.35 = 51,463.50/x
  3. Step 3: Cross multiply
    91,207.50x = 125,866.35 × 51,463.50
  4. Step 4: Simplify right side
    91,207.50x = 6,477,522,903.23
  5. Step 5: Solve for x
    x = 6,477,522,903.23/91,207.50
  6. Step 6: Final answer
    x = 71,019.63

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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.