Home / 90,444.89-135,647.76-57,120.41

Finding the Fourth Proportional to 90,444.89, 135,647.76 and 57,120.41

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Solution

The fourth proportional to 90,444.89, 135,647.76 and 57,120.41 is: 85,668.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,444.89 : 135,647.76 = 57,120.41 : x
  2. Step 2: Convert to fraction form
    90,444.89/135,647.76 = 57,120.41/x
  3. Step 3: Cross multiply
    90,444.89x = 135,647.76 × 57,120.41
  4. Step 4: Simplify right side
    90,444.89x = 7,748,255,666.78
  5. Step 5: Solve for x
    x = 7,748,255,666.78/90,444.89
  6. Step 6: Final answer
    x = 85,668.25

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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.