Home / 73,210.12-109,793.40-31,089.60

Finding the Fourth Proportional to 73,210.12, 109,793.40 and 31,089.60

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Solution

The fourth proportional to 73,210.12, 109,793.40 and 31,089.60 is: 46,625.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,210.12 : 109,793.40 = 31,089.60 : x
  2. Step 2: Convert to fraction form
    73,210.12/109,793.40 = 31,089.60/x
  3. Step 3: Cross multiply
    73,210.12x = 109,793.40 × 31,089.60
  4. Step 4: Simplify right side
    73,210.12x = 3,413,432,888.64
  5. Step 5: Solve for x
    x = 3,413,432,888.64/73,210.12
  6. Step 6: Final answer
    x = 46,625.15

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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.