Home / 83,631.07-115,406.94-45,389.76

Finding the Fourth Proportional to 83,631.07, 115,406.94 and 45,389.76

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Solution

The fourth proportional to 83,631.07, 115,406.94 and 45,389.76 is: 62,635.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,631.07 : 115,406.94 = 45,389.76 : x
  2. Step 2: Convert to fraction form
    83,631.07/115,406.94 = 45,389.76/x
  3. Step 3: Cross multiply
    83,631.07x = 115,406.94 × 45,389.76
  4. Step 4: Simplify right side
    83,631.07x = 5,238,293,308.93
  5. Step 5: Solve for x
    x = 5,238,293,308.93/83,631.07
  6. Step 6: Final answer
    x = 62,635.73

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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.