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Finding the Fourth Proportional to 79,307.68, 119,109.44 and 69,823.36

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Solution

The fourth proportional to 79,307.68, 119,109.44 and 69,823.36 is: 104,865.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,307.68 : 119,109.44 = 69,823.36 : x
  2. Step 2: Convert to fraction form
    79,307.68/119,109.44 = 69,823.36/x
  3. Step 3: Cross multiply
    79,307.68x = 119,109.44 × 69,823.36
  4. Step 4: Simplify right side
    79,307.68x = 8,316,621,308.52
  5. Step 5: Solve for x
    x = 8,316,621,308.52/79,307.68
  6. Step 6: Final answer
    x = 104,865.27

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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.