Home / 71,416.89-98,550.14-39,146.36

Finding the Fourth Proportional to 71,416.89, 98,550.14 and 39,146.36

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Solution

The fourth proportional to 71,416.89, 98,550.14 and 39,146.36 is: 54,019.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,416.89 : 98,550.14 = 39,146.36 : x
  2. Step 2: Convert to fraction form
    71,416.89/98,550.14 = 39,146.36/x
  3. Step 3: Cross multiply
    71,416.89x = 98,550.14 × 39,146.36
  4. Step 4: Simplify right side
    71,416.89x = 3,857,878,570.01
  5. Step 5: Solve for x
    x = 3,857,878,570.01/71,416.89
  6. Step 6: Final answer
    x = 54,019.13

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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.