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Finding the Fourth Proportional to 79,580.79, 109,801.59 and 51,252.39

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Solution

The fourth proportional to 79,580.79, 109,801.59 and 51,252.39 is: 70,715.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,580.79 : 109,801.59 = 51,252.39 : x
  2. Step 2: Convert to fraction form
    79,580.79/109,801.59 = 51,252.39/x
  3. Step 3: Cross multiply
    79,580.79x = 109,801.59 × 51,252.39
  4. Step 4: Simplify right side
    79,580.79x = 5,627,593,913.30
  5. Step 5: Solve for x
    x = 5,627,593,913.30/79,580.79
  6. Step 6: Final answer
    x = 70,715.48

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1.5x scale

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.