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Finding the Fourth Proportional to 79,808.57, 119,632.05 and 51,746.39

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Solution

The fourth proportional to 79,808.57, 119,632.05 and 51,746.39 is: 77,567.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,808.57 : 119,632.05 = 51,746.39 : x
  2. Step 2: Convert to fraction form
    79,808.57/119,632.05 = 51,746.39/x
  3. Step 3: Cross multiply
    79,808.57x = 119,632.05 × 51,746.39
  4. Step 4: Simplify right side
    79,808.57x = 6,190,526,117.64
  5. Step 5: Solve for x
    x = 6,190,526,117.64/79,808.57
  6. Step 6: Final answer
    x = 77,567.19

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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.