Home / 54,931.96-75,809.28-31,060.86

Finding the Fourth Proportional to 54,931.96, 75,809.28 and 31,060.86

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Solution

The fourth proportional to 54,931.96, 75,809.28 and 31,060.86 is: 42,865.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,931.96 : 75,809.28 = 31,060.86 : x
  2. Step 2: Convert to fraction form
    54,931.96/75,809.28 = 31,060.86/x
  3. Step 3: Cross multiply
    54,931.96x = 75,809.28 × 31,060.86
  4. Step 4: Simplify right side
    54,931.96x = 2,354,701,432.78
  5. Step 5: Solve for x
    x = 2,354,701,432.78/54,931.96
  6. Step 6: Final answer
    x = 42,865.78

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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.