Home / 47,806.40-71,718.21-38,999.81

Finding the Fourth Proportional to 47,806.40, 71,718.21 and 38,999.81

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Solution

The fourth proportional to 47,806.40, 71,718.21 and 38,999.81 is: 58,506.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,806.40 : 71,718.21 = 38,999.81 : x
  2. Step 2: Convert to fraction form
    47,806.40/71,718.21 = 38,999.81/x
  3. Step 3: Cross multiply
    47,806.40x = 71,718.21 × 38,999.81
  4. Step 4: Simplify right side
    47,806.40x = 2,796,996,742.84
  5. Step 5: Solve for x
    x = 2,796,996,742.84/47,806.40
  6. Step 6: Final answer
    x = 58,506.74

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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.