Home / 71,666.17-98,899.37-39,401.33

Finding the Fourth Proportional to 71,666.17, 98,899.37 and 39,401.33

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Solution

The fourth proportional to 71,666.17, 98,899.37 and 39,401.33 is: 54,373.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,666.17 : 98,899.37 = 39,401.33 : x
  2. Step 2: Convert to fraction form
    71,666.17/98,899.37 = 39,401.33/x
  3. Step 3: Cross multiply
    71,666.17x = 98,899.37 × 39,401.33
  4. Step 4: Simplify right side
    71,666.17x = 3,896,767,115.69
  5. Step 5: Solve for x
    x = 3,896,767,115.69/71,666.17
  6. Step 6: Final answer
    x = 54,373.87

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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.