Home / 39,965.40-59,901.42-30,072.88

Finding the Fourth Proportional to 39,965.40, 59,901.42 and 30,072.88

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Solution

The fourth proportional to 39,965.40, 59,901.42 and 30,072.88 is: 45,074.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,965.40 : 59,901.42 = 30,072.88 : x
  2. Step 2: Convert to fraction form
    39,965.40/59,901.42 = 30,072.88/x
  3. Step 3: Cross multiply
    39,965.40x = 59,901.42 × 30,072.88
  4. Step 4: Simplify right side
    39,965.40x = 1,801,408,215.49
  5. Step 5: Solve for x
    x = 1,801,408,215.49/39,965.40
  6. Step 6: Final answer
    x = 45,074.19

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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.