Home / 71,001.21-97,982-39,170.10

Finding the Fourth Proportional to 71,001.21, 97,982 and 39,170.10

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Solution

The fourth proportional to 71,001.21, 97,982 and 39,170.10 is: 54,054.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,001.21 : 97,982 = 39,170.10 : x
  2. Step 2: Convert to fraction form
    71,001.21/97,982 = 39,170.10/x
  3. Step 3: Cross multiply
    71,001.21x = 97,982 × 39,170.10
  4. Step 4: Simplify right side
    71,001.21x = 3,837,964,738.20
  5. Step 5: Solve for x
    x = 3,837,964,738.20/71,001.21
  6. Step 6: Final answer
    x = 54,054.92

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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.