Home / 48,089.04-72,114.08-19,990

Finding the Fourth Proportional to 48,089.04, 72,114.08 and 19,990

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Solution

The fourth proportional to 48,089.04, 72,114.08 and 19,990 is: 29,976.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,089.04 : 72,114.08 = 19,990 : x
  2. Step 2: Convert to fraction form
    48,089.04/72,114.08 = 19,990/x
  3. Step 3: Cross multiply
    48,089.04x = 72,114.08 × 19,990
  4. Step 4: Simplify right side
    48,089.04x = 1,441,560,459.20
  5. Step 5: Solve for x
    x = 1,441,560,459.20/48,089.04
  6. Step 6: Final answer
    x = 29,976.90

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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.