Home / 53,732.92-74,145.78-31,068.28

Finding the Fourth Proportional to 53,732.92, 74,145.78 and 31,068.28

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Solution

The fourth proportional to 53,732.92, 74,145.78 and 31,068.28 is: 42,870.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,732.92 : 74,145.78 = 31,068.28 : x
  2. Step 2: Convert to fraction form
    53,732.92/74,145.78 = 31,068.28/x
  3. Step 3: Cross multiply
    53,732.92x = 74,145.78 × 31,068.28
  4. Step 4: Simplify right side
    53,732.92x = 2,303,581,853.86
  5. Step 5: Solve for x
    x = 2,303,581,853.86/53,732.92
  6. Step 6: Final answer
    x = 42,870.96

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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.