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Finding the Fourth Proportional to 83,674.82, 115,472.63 and 45,434.36

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Solution

The fourth proportional to 83,674.82, 115,472.63 and 45,434.36 is: 62,700.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,674.82 : 115,472.63 = 45,434.36 : x
  2. Step 2: Convert to fraction form
    83,674.82/115,472.63 = 45,434.36/x
  3. Step 3: Cross multiply
    83,674.82x = 115,472.63 × 45,434.36
  4. Step 4: Simplify right side
    83,674.82x = 5,246,425,041.57
  5. Step 5: Solve for x
    x = 5,246,425,041.57/83,674.82
  6. Step 6: Final answer
    x = 62,700.17

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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.