Home / 76,009.07-113,952.09-31,669.13

Finding the Fourth Proportional to 76,009.07, 113,952.09 and 31,669.13

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Solution

The fourth proportional to 76,009.07, 113,952.09 and 31,669.13 is: 47,478.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,009.07 : 113,952.09 = 31,669.13 : x
  2. Step 2: Convert to fraction form
    76,009.07/113,952.09 = 31,669.13/x
  3. Step 3: Cross multiply
    76,009.07x = 113,952.09 × 31,669.13
  4. Step 4: Simplify right side
    76,009.07x = 3,608,763,551.98
  5. Step 5: Solve for x
    x = 3,608,763,551.98/76,009.07
  6. Step 6: Final answer
    x = 47,478.06

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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.