Home / 90,946.86-136,338.21-38,359.50

Finding the Fourth Proportional to 90,946.86, 136,338.21 and 38,359.50

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Solution

The fourth proportional to 90,946.86, 136,338.21 and 38,359.50 is: 57,504.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,946.86 : 136,338.21 = 38,359.50 : x
  2. Step 2: Convert to fraction form
    90,946.86/136,338.21 = 38,359.50/x
  3. Step 3: Cross multiply
    90,946.86x = 136,338.21 × 38,359.50
  4. Step 4: Simplify right side
    90,946.86x = 5,229,865,566.50
  5. Step 5: Solve for x
    x = 5,229,865,566.50/90,946.86
  6. Step 6: Final answer
    x = 57,504.63

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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.