Home / 57,631.49-79,528.99-42,518.71

Finding the Fourth Proportional to 57,631.49, 79,528.99 and 42,518.71

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Solution

The fourth proportional to 57,631.49, 79,528.99 and 42,518.71 is: 58,673.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,631.49 : 79,528.99 = 42,518.71 : x
  2. Step 2: Convert to fraction form
    57,631.49/79,528.99 = 42,518.71/x
  3. Step 3: Cross multiply
    57,631.49x = 79,528.99 × 42,518.71
  4. Step 4: Simplify right side
    57,631.49x = 3,381,469,452.16
  5. Step 5: Solve for x
    x = 3,381,469,452.16/57,631.49
  6. Step 6: Final answer
    x = 58,673.99

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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.