Home / 49,921.96-68,892.30-28,705.40

Finding the Fourth Proportional to 49,921.96, 68,892.30 and 28,705.40

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Solution

The fourth proportional to 49,921.96, 68,892.30 and 28,705.40 is: 39,613.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,921.96 : 68,892.30 = 28,705.40 : x
  2. Step 2: Convert to fraction form
    49,921.96/68,892.30 = 28,705.40/x
  3. Step 3: Cross multiply
    49,921.96x = 68,892.30 × 28,705.40
  4. Step 4: Simplify right side
    49,921.96x = 1,977,581,028.42
  5. Step 5: Solve for x
    x = 1,977,581,028.42/49,921.96
  6. Step 6: Final answer
    x = 39,613.45

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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.