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Finding the Fourth Proportional to 83,425.82, 115,130.50 and 45,700.07

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Solution

The fourth proportional to 83,425.82, 115,130.50 and 45,700.07 is: 63,067.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,425.82 : 115,130.50 = 45,700.07 : x
  2. Step 2: Convert to fraction form
    83,425.82/115,130.50 = 45,700.07/x
  3. Step 3: Cross multiply
    83,425.82x = 115,130.50 × 45,700.07
  4. Step 4: Simplify right side
    83,425.82x = 5,261,471,219.23
  5. Step 5: Solve for x
    x = 5,261,471,219.23/83,425.82
  6. Step 6: Final answer
    x = 63,067.66

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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.