Home / 85,877.11-118,511.63-51,880.87

Finding the Fourth Proportional to 85,877.11, 118,511.63 and 51,880.87

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Solution

The fourth proportional to 85,877.11, 118,511.63 and 51,880.87 is: 71,596.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,877.11 : 118,511.63 = 51,880.87 : x
  2. Step 2: Convert to fraction form
    85,877.11/118,511.63 = 51,880.87/x
  3. Step 3: Cross multiply
    85,877.11x = 118,511.63 × 51,880.87
  4. Step 4: Simplify right side
    85,877.11x = 6,148,486,469.52
  5. Step 5: Solve for x
    x = 6,148,486,469.52/85,877.11
  6. Step 6: Final answer
    x = 71,596.34

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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.