Home / 57,089.60-78,783.78-31,597.71

Finding the Fourth Proportional to 57,089.60, 78,783.78 and 31,597.71

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Solution

The fourth proportional to 57,089.60, 78,783.78 and 31,597.71 is: 43,604.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,089.60 : 78,783.78 = 31,597.71 : x
  2. Step 2: Convert to fraction form
    57,089.60/78,783.78 = 31,597.71/x
  3. Step 3: Cross multiply
    57,089.60x = 78,783.78 × 31,597.71
  4. Step 4: Simplify right side
    57,089.60x = 2,489,387,033.14
  5. Step 5: Solve for x
    x = 2,489,387,033.14/57,089.60
  6. Step 6: Final answer
    x = 43,604.91

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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.