Home / 83,639.46-115,421.96-45,399.76

Finding the Fourth Proportional to 83,639.46, 115,421.96 and 45,399.76

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Solution

The fourth proportional to 83,639.46, 115,421.96 and 45,399.76 is: 62,651.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,639.46 : 115,421.96 = 45,399.76 : x
  2. Step 2: Convert to fraction form
    83,639.46/115,421.96 = 45,399.76/x
  3. Step 3: Cross multiply
    83,639.46x = 115,421.96 × 45,399.76
  4. Step 4: Simplify right side
    83,639.46x = 5,240,129,282.73
  5. Step 5: Solve for x
    x = 5,240,129,282.73/83,639.46
  6. Step 6: Final answer
    x = 62,651.40

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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.