Home / 83,705.47-115,534.97-51,901.63

Finding the Fourth Proportional to 83,705.47, 115,534.97 and 51,901.63

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Solution

The fourth proportional to 83,705.47, 115,534.97 and 51,901.63 is: 71,637.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,705.47 : 115,534.97 = 51,901.63 : x
  2. Step 2: Convert to fraction form
    83,705.47/115,534.97 = 51,901.63/x
  3. Step 3: Cross multiply
    83,705.47x = 115,534.97 × 51,901.63
  4. Step 4: Simplify right side
    83,705.47x = 5,996,453,265.00
  5. Step 5: Solve for x
    x = 5,996,453,265.00/83,705.47
  6. Step 6: Final answer
    x = 71,637.53

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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.