Home / 91,416.60-137,138.58-29,101.08

Finding the Fourth Proportional to 91,416.60, 137,138.58 and 29,101.08

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Solution

The fourth proportional to 91,416.60, 137,138.58 and 29,101.08 is: 43,655.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,416.60 : 137,138.58 = 29,101.08 : x
  2. Step 2: Convert to fraction form
    91,416.60/137,138.58 = 29,101.08/x
  3. Step 3: Cross multiply
    91,416.60x = 137,138.58 × 29,101.08
  4. Step 4: Simplify right side
    91,416.60x = 3,990,880,787.67
  5. Step 5: Solve for x
    x = 3,990,880,787.67/91,416.60
  6. Step 6: Final answer
    x = 43,655.97

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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.