Home / 71,022.81-98,013.61-39,193.76

Finding the Fourth Proportional to 71,022.81, 98,013.61 and 39,193.76

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Solution

The fourth proportional to 71,022.81, 98,013.61 and 39,193.76 is: 54,088.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,022.81 : 98,013.61 = 39,193.76 : x
  2. Step 2: Convert to fraction form
    71,022.81/98,013.61 = 39,193.76/x
  3. Step 3: Cross multiply
    71,022.81x = 98,013.61 × 39,193.76
  4. Step 4: Simplify right side
    71,022.81x = 3,841,521,907.07
  5. Step 5: Solve for x
    x = 3,841,521,907.07/71,022.81
  6. Step 6: Final answer
    x = 54,088.57

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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.