Home / 54,561.72-81,842.58-47,143.74

Finding the Fourth Proportional to 54,561.72, 81,842.58 and 47,143.74

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Solution

The fourth proportional to 54,561.72, 81,842.58 and 47,143.74 is: 70,715.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,561.72 : 81,842.58 = 47,143.74 : x
  2. Step 2: Convert to fraction form
    54,561.72/81,842.58 = 47,143.74/x
  3. Step 3: Cross multiply
    54,561.72x = 81,842.58 × 47,143.74
  4. Step 4: Simplify right side
    54,561.72x = 3,858,365,312.45
  5. Step 5: Solve for x
    x = 3,858,365,312.45/54,561.72
  6. Step 6: Final answer
    x = 70,715.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.