Home / 71,455.19-98,613.14-39,627.05

Finding the Fourth Proportional to 71,455.19, 98,613.14 and 39,627.05

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Solution

The fourth proportional to 71,455.19, 98,613.14 and 39,627.05 is: 54,688.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,455.19 : 98,613.14 = 39,627.05 : x
  2. Step 2: Convert to fraction form
    71,455.19/98,613.14 = 39,627.05/x
  3. Step 3: Cross multiply
    71,455.19x = 98,613.14 × 39,627.05
  4. Step 4: Simplify right side
    71,455.19x = 3,907,747,138.24
  5. Step 5: Solve for x
    x = 3,907,747,138.24/71,455.19
  6. Step 6: Final answer
    x = 54,688.08

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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.