Home / 49,432.31-74,142.30-19,840.16

Finding the Fourth Proportional to 49,432.31, 74,142.30 and 19,840.16

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Solution

The fourth proportional to 49,432.31, 74,142.30 and 19,840.16 is: 29,757.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,432.31 : 74,142.30 = 19,840.16 : x
  2. Step 2: Convert to fraction form
    49,432.31/74,142.30 = 19,840.16/x
  3. Step 3: Cross multiply
    49,432.31x = 74,142.30 × 19,840.16
  4. Step 4: Simplify right side
    49,432.31x = 1,470,994,937.47
  5. Step 5: Solve for x
    x = 1,470,994,937.47/49,432.31
  6. Step 6: Final answer
    x = 29,757.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.