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Finding the Fourth Proportional to 83,369.42, 115,049.80 and 45,643.67

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Solution

The fourth proportional to 83,369.42, 115,049.80 and 45,643.67 is: 62,988.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,369.42 : 115,049.80 = 45,643.67 : x
  2. Step 2: Convert to fraction form
    83,369.42/115,049.80 = 45,643.67/x
  3. Step 3: Cross multiply
    83,369.42x = 115,049.80 × 45,643.67
  4. Step 4: Simplify right side
    83,369.42x = 5,251,295,104.77
  5. Step 5: Solve for x
    x = 5,251,295,104.77/83,369.42
  6. Step 6: Final answer
    x = 62,988.26

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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.