Home / 76,631.28-105,718.68-46,806

Finding the Fourth Proportional to 76,631.28, 105,718.68 and 46,806

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Solution

The fourth proportional to 76,631.28, 105,718.68 and 46,806 is: 64,572.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,631.28 : 105,718.68 = 46,806 : x
  2. Step 2: Convert to fraction form
    76,631.28/105,718.68 = 46,806/x
  3. Step 3: Cross multiply
    76,631.28x = 105,718.68 × 46,806
  4. Step 4: Simplify right side
    76,631.28x = 4,948,268,536.08
  5. Step 5: Solve for x
    x = 4,948,268,536.08/76,631.28
  6. Step 6: Final answer
    x = 64,572.44

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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.