Home / 101,509.47-152,278.79-31,394.25

Finding the Fourth Proportional to 101,509.47, 152,278.79 and 31,394.25

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Solution

The fourth proportional to 101,509.47, 152,278.79 and 31,394.25 is: 47,095.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,509.47 : 152,278.79 = 31,394.25 : x
  2. Step 2: Convert to fraction form
    101,509.47/152,278.79 = 31,394.25/x
  3. Step 3: Cross multiply
    101,509.47x = 152,278.79 × 31,394.25
  4. Step 4: Simplify right side
    101,509.47x = 4,780,678,245.99
  5. Step 5: Solve for x
    x = 4,780,678,245.99/101,509.47
  6. Step 6: Final answer
    x = 47,095.88

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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.