Home / 48,941.40-73,412.10-45,139.80

Finding the Fourth Proportional to 48,941.40, 73,412.10 and 45,139.80

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Solution

The fourth proportional to 48,941.40, 73,412.10 and 45,139.80 is: 67,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,941.40 : 73,412.10 = 45,139.80 : x
  2. Step 2: Convert to fraction form
    48,941.40/73,412.10 = 45,139.80/x
  3. Step 3: Cross multiply
    48,941.40x = 73,412.10 × 45,139.80
  4. Step 4: Simplify right side
    48,941.40x = 3,313,807,511.58
  5. Step 5: Solve for x
    x = 3,313,807,511.58/48,941.40
  6. Step 6: Final answer
    x = 67,709.70

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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.