Home / 47,792.07-71,689.74-12,731.76

Finding the Fourth Proportional to 47,792.07, 71,689.74 and 12,731.76

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Solution

The fourth proportional to 47,792.07, 71,689.74 and 12,731.76 is: 19,098.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,792.07 : 71,689.74 = 12,731.76 : x
  2. Step 2: Convert to fraction form
    47,792.07/71,689.74 = 12,731.76/x
  3. Step 3: Cross multiply
    47,792.07x = 71,689.74 × 12,731.76
  4. Step 4: Simplify right side
    47,792.07x = 912,736,564.14
  5. Step 5: Solve for x
    x = 912,736,564.14/47,792.07
  6. Step 6: Final answer
    x = 19,098.08

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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.