Home / 83,706.47-115,536.35-51,902.63

Finding the Fourth Proportional to 83,706.47, 115,536.35 and 51,902.63

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Solution

The fourth proportional to 83,706.47, 115,536.35 and 51,902.63 is: 71,638.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,706.47 : 115,536.35 = 51,902.63 : x
  2. Step 2: Convert to fraction form
    83,706.47/115,536.35 = 51,902.63/x
  3. Step 3: Cross multiply
    83,706.47x = 115,536.35 × 51,902.63
  4. Step 4: Simplify right side
    83,706.47x = 5,996,640,425.60
  5. Step 5: Solve for x
    x = 5,996,640,425.60/83,706.47
  6. Step 6: Final answer
    x = 71,638.91

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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.