Home / 83,707.21-115,516.81-45,467.13

Finding the Fourth Proportional to 83,707.21, 115,516.81 and 45,467.13

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Solution

The fourth proportional to 83,707.21, 115,516.81 and 45,467.13 is: 62,745.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,707.21 : 115,516.81 = 45,467.13 : x
  2. Step 2: Convert to fraction form
    83,707.21/115,516.81 = 45,467.13/x
  3. Step 3: Cross multiply
    83,707.21x = 115,516.81 × 45,467.13
  4. Step 4: Simplify right side
    83,707.21x = 5,252,218,051.72
  5. Step 5: Solve for x
    x = 5,252,218,051.72/83,707.21
  6. Step 6: Final answer
    x = 62,745.11

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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.