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Finding the Fourth Proportional to 79,995.69, 119,953.20 and 26,668.74

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Solution

The fourth proportional to 79,995.69, 119,953.20 and 26,668.74 is: 39,989.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,995.69 : 119,953.20 = 26,668.74 : x
  2. Step 2: Convert to fraction form
    79,995.69/119,953.20 = 26,668.74/x
  3. Step 3: Cross multiply
    79,995.69x = 119,953.20 × 26,668.74
  4. Step 4: Simplify right side
    79,995.69x = 3,199,000,702.97
  5. Step 5: Solve for x
    x = 3,199,000,702.97/79,995.69
  6. Step 6: Final answer
    x = 39,989.66

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1.5x scale

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.