Home / 91,772.32-137,670-29,426.08

Finding the Fourth Proportional to 91,772.32, 137,670 and 29,426.08

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Solution

The fourth proportional to 91,772.32, 137,670 and 29,426.08 is: 44,142.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,772.32 : 137,670 = 29,426.08 : x
  2. Step 2: Convert to fraction form
    91,772.32/137,670 = 29,426.08/x
  3. Step 3: Cross multiply
    91,772.32x = 137,670 × 29,426.08
  4. Step 4: Simplify right side
    91,772.32x = 4,051,088,433.60
  5. Step 5: Solve for x
    x = 4,051,088,433.60/91,772.32
  6. Step 6: Final answer
    x = 44,142.81

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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.