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Finding the Fourth Proportional to 91,999.41, 137,999.12 and 29,669.91

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Solution

The fourth proportional to 91,999.41, 137,999.12 and 29,669.91 is: 44,504.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,999.41 : 137,999.12 = 29,669.91 : x
  2. Step 2: Convert to fraction form
    91,999.41/137,999.12 = 29,669.91/x
  3. Step 3: Cross multiply
    91,999.41x = 137,999.12 × 29,669.91
  4. Step 4: Simplify right side
    91,999.41x = 4,094,421,322.13
  5. Step 5: Solve for x
    x = 4,094,421,322.13/91,999.41
  6. Step 6: Final answer
    x = 44,504.87

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1.5x scale

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.