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Finding the Fourth Proportional to 48,049.58, 72,100.22 and 19,989.00

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Solution

The fourth proportional to 48,049.58, 72,100.22 and 19,989.00 is: 29,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,049.58 : 72,100.22 = 19,989.00 : x
  2. Step 2: Convert to fraction form
    48,049.58/72,100.22 = 19,989.00/x
  3. Step 3: Cross multiply
    48,049.58x = 72,100.22 × 19,989.00
  4. Step 4: Simplify right side
    48,049.58x = 1,441,210,837.13
  5. Step 5: Solve for x
    x = 1,441,210,837.13/48,049.58
  6. Step 6: Final answer
    x = 29,994.25

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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.