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Finding the Fourth Proportional to 79,359.66, 109,516.27 and 45,368.90

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Solution

The fourth proportional to 79,359.66, 109,516.27 and 45,368.90 is: 62,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,359.66 : 109,516.27 = 45,368.90 : x
  2. Step 2: Convert to fraction form
    79,359.66/109,516.27 = 45,368.90/x
  3. Step 3: Cross multiply
    79,359.66x = 109,516.27 × 45,368.90
  4. Step 4: Simplify right side
    79,359.66x = 4,968,632,702.00
  5. Step 5: Solve for x
    x = 4,968,632,702.00/79,359.66
  6. Step 6: Final answer
    x = 62,609.05

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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.