Home / 57,346.39-79,135.32-31,854.40

Finding the Fourth Proportional to 57,346.39, 79,135.32 and 31,854.40

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Solution

The fourth proportional to 57,346.39, 79,135.32 and 31,854.40 is: 43,957.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,346.39 : 79,135.32 = 31,854.40 : x
  2. Step 2: Convert to fraction form
    57,346.39/79,135.32 = 31,854.40/x
  3. Step 3: Cross multiply
    57,346.39x = 79,135.32 × 31,854.40
  4. Step 4: Simplify right side
    57,346.39x = 2,520,808,137.41
  5. Step 5: Solve for x
    x = 2,520,808,137.41/57,346.39
  6. Step 6: Final answer
    x = 43,957.57

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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.