Home / 48,318.14-66,617.31-31,292.30

Finding the Fourth Proportional to 48,318.14, 66,617.31 and 31,292.30

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Solution

The fourth proportional to 48,318.14, 66,617.31 and 31,292.30 is: 43,143.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,318.14 : 66,617.31 = 31,292.30 : x
  2. Step 2: Convert to fraction form
    48,318.14/66,617.31 = 31,292.30/x
  3. Step 3: Cross multiply
    48,318.14x = 66,617.31 × 31,292.30
  4. Step 4: Simplify right side
    48,318.14x = 2,084,608,849.71
  5. Step 5: Solve for x
    x = 2,084,608,849.71/48,318.14
  6. Step 6: Final answer
    x = 43,143.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.