Home / 71,155.21-98,200.41-39,330.31

Finding the Fourth Proportional to 71,155.21, 98,200.41 and 39,330.31

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Solution

The fourth proportional to 71,155.21, 98,200.41 and 39,330.31 is: 54,279.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,155.21 : 98,200.41 = 39,330.31 : x
  2. Step 2: Convert to fraction form
    71,155.21/98,200.41 = 39,330.31/x
  3. Step 3: Cross multiply
    71,155.21x = 98,200.41 × 39,330.31
  4. Step 4: Simplify right side
    71,155.21x = 3,862,252,567.43
  5. Step 5: Solve for x
    x = 3,862,252,567.43/71,155.21
  6. Step 6: Final answer
    x = 54,279.27

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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.