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Finding the Fourth Proportional to 71,130.16, 98,151.25 and 39,297.16

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Solution

The fourth proportional to 71,130.16, 98,151.25 and 39,297.16 is: 54,225.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,130.16 : 98,151.25 = 39,297.16 : x
  2. Step 2: Convert to fraction form
    71,130.16/98,151.25 = 39,297.16/x
  3. Step 3: Cross multiply
    71,130.16x = 98,151.25 × 39,297.16
  4. Step 4: Simplify right side
    71,130.16x = 3,857,065,375.45
  5. Step 5: Solve for x
    x = 3,857,065,375.45/71,130.16
  6. Step 6: Final answer
    x = 54,225.46

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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.