Home / 83,117.53-114,702.15-49,138.30

Finding the Fourth Proportional to 83,117.53, 114,702.15 and 49,138.30

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Solution

The fourth proportional to 83,117.53, 114,702.15 and 49,138.30 is: 67,810.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,117.53 : 114,702.15 = 49,138.30 : x
  2. Step 2: Convert to fraction form
    83,117.53/114,702.15 = 49,138.30/x
  3. Step 3: Cross multiply
    83,117.53x = 114,702.15 × 49,138.30
  4. Step 4: Simplify right side
    83,117.53x = 5,636,268,657.35
  5. Step 5: Solve for x
    x = 5,636,268,657.35/83,117.53
  6. Step 6: Final answer
    x = 67,810.83

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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.