Home / 71,666.19-98,899.84-39,401.35

Finding the Fourth Proportional to 71,666.19, 98,899.84 and 39,401.35

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Solution

The fourth proportional to 71,666.19, 98,899.84 and 39,401.35 is: 54,374.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,666.19 : 98,899.84 = 39,401.35 : x
  2. Step 2: Convert to fraction form
    71,666.19/98,899.84 = 39,401.35/x
  3. Step 3: Cross multiply
    71,666.19x = 98,899.84 × 39,401.35
  4. Step 4: Simplify right side
    71,666.19x = 3,896,787,210.78
  5. Step 5: Solve for x
    x = 3,896,787,210.78/71,666.19
  6. Step 6: Final answer
    x = 54,374.14

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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.