Home / 45,315.40-67,973.10-43,395.70

Finding the Fourth Proportional to 45,315.40, 67,973.10 and 43,395.70

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Solution

The fourth proportional to 45,315.40, 67,973.10 and 43,395.70 is: 65,093.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,315.40 : 67,973.10 = 43,395.70 : x
  2. Step 2: Convert to fraction form
    45,315.40/67,973.10 = 43,395.70/x
  3. Step 3: Cross multiply
    45,315.40x = 67,973.10 × 43,395.70
  4. Step 4: Simplify right side
    45,315.40x = 2,949,740,255.67
  5. Step 5: Solve for x
    x = 2,949,740,255.67/45,315.40
  6. Step 6: Final answer
    x = 65,093.55

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Similar ratio
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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.