Home / 90,544.96-135,727.02-45,428.48

Finding the Fourth Proportional to 90,544.96, 135,727.02 and 45,428.48

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Solution

The fourth proportional to 90,544.96, 135,727.02 and 45,428.48 is: 68,097.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,544.96 : 135,727.02 = 45,428.48 : x
  2. Step 2: Convert to fraction form
    90,544.96/135,727.02 = 45,428.48/x
  3. Step 3: Cross multiply
    90,544.96x = 135,727.02 × 45,428.48
  4. Step 4: Simplify right side
    90,544.96x = 6,165,872,213.53
  5. Step 5: Solve for x
    x = 6,165,872,213.53/90,544.96
  6. Step 6: Final answer
    x = 68,097.35

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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.