Home / 75,228.55-103,816.58-45,015.14

Finding the Fourth Proportional to 75,228.55, 103,816.58 and 45,015.14

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Solution

The fourth proportional to 75,228.55, 103,816.58 and 45,015.14 is: 62,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,228.55 : 103,816.58 = 45,015.14 : x
  2. Step 2: Convert to fraction form
    75,228.55/103,816.58 = 45,015.14/x
  3. Step 3: Cross multiply
    75,228.55x = 103,816.58 × 45,015.14
  4. Step 4: Simplify right side
    75,228.55x = 4,673,317,917.49
  5. Step 5: Solve for x
    x = 4,673,317,917.49/75,228.55
  6. Step 6: Final answer
    x = 62,121.60

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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.