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Finding the Fourth Proportional to 91,368.83, 137,062.64 and 34,490.64

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Solution

The fourth proportional to 91,368.83, 137,062.64 and 34,490.64 is: 51,739.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,368.83 : 137,062.64 = 34,490.64 : x
  2. Step 2: Convert to fraction form
    91,368.83/137,062.64 = 34,490.64/x
  3. Step 3: Cross multiply
    91,368.83x = 137,062.64 × 34,490.64
  4. Step 4: Simplify right side
    91,368.83x = 4,727,378,173.69
  5. Step 5: Solve for x
    x = 4,727,378,173.69/91,368.83
  6. Step 6: Final answer
    x = 51,739.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.