Home / 73,303.23-109,987.62-42,138.48

Finding the Fourth Proportional to 73,303.23, 109,987.62 and 42,138.48

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Solution

The fourth proportional to 73,303.23, 109,987.62 and 42,138.48 is: 63,226.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,303.23 : 109,987.62 = 42,138.48 : x
  2. Step 2: Convert to fraction form
    73,303.23/109,987.62 = 42,138.48/x
  3. Step 3: Cross multiply
    73,303.23x = 109,987.62 × 42,138.48
  4. Step 4: Simplify right side
    73,303.23x = 4,634,711,125.62
  5. Step 5: Solve for x
    x = 4,634,711,125.62/73,303.23
  6. Step 6: Final answer
    x = 63,226.56

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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.