Home / 83,611.08-115,377.30-47,802.60

Finding the Fourth Proportional to 83,611.08, 115,377.30 and 47,802.60

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Solution

The fourth proportional to 83,611.08, 115,377.30 and 47,802.60 is: 65,964.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,611.08 : 115,377.30 = 47,802.60 : x
  2. Step 2: Convert to fraction form
    83,611.08/115,377.30 = 47,802.60/x
  3. Step 3: Cross multiply
    83,611.08x = 115,377.30 × 47,802.60
  4. Step 4: Simplify right side
    83,611.08x = 5,515,334,920.98
  5. Step 5: Solve for x
    x = 5,515,334,920.98/83,611.08
  6. Step 6: Final answer
    x = 65,964.16

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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.