Home / 85,702.05-118,275.39-49,409.39

Finding the Fourth Proportional to 85,702.05, 118,275.39 and 49,409.39

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Solution

The fourth proportional to 85,702.05, 118,275.39 and 49,409.39 is: 68,188.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,702.05 : 118,275.39 = 49,409.39 : x
  2. Step 2: Convert to fraction form
    85,702.05/118,275.39 = 49,409.39/x
  3. Step 3: Cross multiply
    85,702.05x = 118,275.39 × 49,409.39
  4. Step 4: Simplify right side
    85,702.05x = 5,843,915,167.60
  5. Step 5: Solve for x
    x = 5,843,915,167.60/85,702.05
  6. Step 6: Final answer
    x = 68,188.74

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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.