Home / 39,807.45-54,907.07-32,721.57

Finding the Fourth Proportional to 39,807.45, 54,907.07 and 32,721.57

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Solution

The fourth proportional to 39,807.45, 54,907.07 and 32,721.57 is: 45,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,807.45 : 54,907.07 = 32,721.57 : x
  2. Step 2: Convert to fraction form
    39,807.45/54,907.07 = 32,721.57/x
  3. Step 3: Cross multiply
    39,807.45x = 54,907.07 × 32,721.57
  4. Step 4: Simplify right side
    39,807.45x = 1,796,645,370.89
  5. Step 5: Solve for x
    x = 1,796,645,370.89/39,807.45
  6. Step 6: Final answer
    x = 45,133.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.