Home / 48,013.50-66,254.31-30,102.78

Finding the Fourth Proportional to 48,013.50, 66,254.31 and 30,102.78

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Solution

The fourth proportional to 48,013.50, 66,254.31 and 30,102.78 is: 41,539.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,013.50 : 66,254.31 = 30,102.78 : x
  2. Step 2: Convert to fraction form
    48,013.50/66,254.31 = 30,102.78/x
  3. Step 3: Cross multiply
    48,013.50x = 66,254.31 × 30,102.78
  4. Step 4: Simplify right side
    48,013.50x = 1,994,438,917.98
  5. Step 5: Solve for x
    x = 1,994,438,917.98/48,013.50
  6. Step 6: Final answer
    x = 41,539.13

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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.