Home / 90,940.59-136,429.79-38,350.53

Finding the Fourth Proportional to 90,940.59, 136,429.79 and 38,350.53

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Solution

The fourth proportional to 90,940.59, 136,429.79 and 38,350.53 is: 57,533.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,940.59 : 136,429.79 = 38,350.53 : x
  2. Step 2: Convert to fraction form
    90,940.59/136,429.79 = 38,350.53/x
  3. Step 3: Cross multiply
    90,940.59x = 136,429.79 × 38,350.53
  4. Step 4: Simplify right side
    90,940.59x = 5,232,154,562.54
  5. Step 5: Solve for x
    x = 5,232,154,562.54/90,940.59
  6. Step 6: Final answer
    x = 57,533.77

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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.