Home / 49,459.89-68,278.31-28,235.06

Finding the Fourth Proportional to 49,459.89, 68,278.31 and 28,235.06

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Solution

The fourth proportional to 49,459.89, 68,278.31 and 28,235.06 is: 38,977.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,459.89 : 68,278.31 = 28,235.06 : x
  2. Step 2: Convert to fraction form
    49,459.89/68,278.31 = 28,235.06/x
  3. Step 3: Cross multiply
    49,459.89x = 68,278.31 × 28,235.06
  4. Step 4: Simplify right side
    49,459.89x = 1,927,842,179.55
  5. Step 5: Solve for x
    x = 1,927,842,179.55/49,459.89
  6. Step 6: Final answer
    x = 38,977.89

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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.