Home / 78,982.08-118,491.65-54,033.87

Finding the Fourth Proportional to 78,982.08, 118,491.65 and 54,033.87

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Solution

The fourth proportional to 78,982.08, 118,491.65 and 54,033.87 is: 81,063.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,982.08 : 118,491.65 = 54,033.87 : x
  2. Step 2: Convert to fraction form
    78,982.08/118,491.65 = 54,033.87/x
  3. Step 3: Cross multiply
    78,982.08x = 118,491.65 × 54,033.87
  4. Step 4: Simplify right side
    78,982.08x = 6,402,562,142.02
  5. Step 5: Solve for x
    x = 6,402,562,142.02/78,982.08
  6. Step 6: Final answer
    x = 81,063.48

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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.