Home / 54,333.38-74,980.32-31,688.08

Finding the Fourth Proportional to 54,333.38, 74,980.32 and 31,688.08

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Solution

The fourth proportional to 54,333.38, 74,980.32 and 31,688.08 is: 43,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,333.38 : 74,980.32 = 31,688.08 : x
  2. Step 2: Convert to fraction form
    54,333.38/74,980.32 = 31,688.08/x
  3. Step 3: Cross multiply
    54,333.38x = 74,980.32 × 31,688.08
  4. Step 4: Simplify right side
    54,333.38x = 2,375,982,378.59
  5. Step 5: Solve for x
    x = 2,375,982,378.59/54,333.38
  6. Step 6: Final answer
    x = 43,729.70

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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.