Home / 90,504.30-135,575.28-43,165.47

Finding the Fourth Proportional to 90,504.30, 135,575.28 and 43,165.47

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Solution

The fourth proportional to 90,504.30, 135,575.28 and 43,165.47 is: 64,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,504.30 : 135,575.28 = 43,165.47 : x
  2. Step 2: Convert to fraction form
    90,504.30/135,575.28 = 43,165.47/x
  3. Step 3: Cross multiply
    90,504.30x = 135,575.28 × 43,165.47
  4. Step 4: Simplify right side
    90,504.30x = 5,852,170,681.58
  5. Step 5: Solve for x
    x = 5,852,170,681.58/90,504.30
  6. Step 6: Final answer
    x = 64,661.80

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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.