Home / 71,824.03-99,115.14-39,117.71

Finding the Fourth Proportional to 71,824.03, 99,115.14 and 39,117.71

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Solution

The fourth proportional to 71,824.03, 99,115.14 and 39,117.71 is: 53,981.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,824.03 : 99,115.14 = 39,117.71 : x
  2. Step 2: Convert to fraction form
    71,824.03/99,115.14 = 39,117.71/x
  3. Step 3: Cross multiply
    71,824.03x = 99,115.14 × 39,117.71
  4. Step 4: Simplify right side
    71,824.03x = 3,877,156,795.81
  5. Step 5: Solve for x
    x = 3,877,156,795.81/71,824.03
  6. Step 6: Final answer
    x = 53,981.33

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1.5x scale

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.