Home / 45,931.19-68,896.78-30,345.17

Finding the Fourth Proportional to 45,931.19, 68,896.78 and 30,345.17

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Solution

The fourth proportional to 45,931.19, 68,896.78 and 30,345.17 is: 45,517.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,931.19 : 68,896.78 = 30,345.17 : x
  2. Step 2: Convert to fraction form
    45,931.19/68,896.78 = 30,345.17/x
  3. Step 3: Cross multiply
    45,931.19x = 68,896.78 × 30,345.17
  4. Step 4: Simplify right side
    45,931.19x = 2,090,684,081.21
  5. Step 5: Solve for x
    x = 2,090,684,081.21/45,931.19
  6. Step 6: Final answer
    x = 45,517.75

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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.