Home / 90,184.56-124,341.30-57,861.96

Finding the Fourth Proportional to 90,184.56, 124,341.30 and 57,861.96

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Solution

The fourth proportional to 90,184.56, 124,341.30 and 57,861.96 is: 79,776.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,184.56 : 124,341.30 = 57,861.96 : x
  2. Step 2: Convert to fraction form
    90,184.56/124,341.30 = 57,861.96/x
  3. Step 3: Cross multiply
    90,184.56x = 124,341.30 × 57,861.96
  4. Step 4: Simplify right side
    90,184.56x = 7,194,631,326.95
  5. Step 5: Solve for x
    x = 7,194,631,326.95/90,184.56
  6. Step 6: Final answer
    x = 79,776.75

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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.