Home / 54,372.86-75,019.12-31,712.84

Finding the Fourth Proportional to 54,372.86, 75,019.12 and 31,712.84

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Solution

The fourth proportional to 54,372.86, 75,019.12 and 31,712.84 is: 43,754.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,372.86 : 75,019.12 = 31,712.84 : x
  2. Step 2: Convert to fraction form
    54,372.86/75,019.12 = 31,712.84/x
  3. Step 3: Cross multiply
    54,372.86x = 75,019.12 × 31,712.84
  4. Step 4: Simplify right side
    54,372.86x = 2,379,069,349.50
  5. Step 5: Solve for x
    x = 2,379,069,349.50/54,372.86
  6. Step 6: Final answer
    x = 43,754.72

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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.