Home / 75,724.32-113,586.90-31,327.02

Finding the Fourth Proportional to 75,724.32, 113,586.90 and 31,327.02

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Solution

The fourth proportional to 75,724.32, 113,586.90 and 31,327.02 is: 46,990.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,724.32 : 113,586.90 = 31,327.02 : x
  2. Step 2: Convert to fraction form
    75,724.32/113,586.90 = 31,327.02/x
  3. Step 3: Cross multiply
    75,724.32x = 113,586.90 × 31,327.02
  4. Step 4: Simplify right side
    75,724.32x = 3,558,339,088.04
  5. Step 5: Solve for x
    x = 3,558,339,088.04/75,724.32
  6. Step 6: Final answer
    x = 46,990.70

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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.