Home / 83,516.16-115,251.48-45,790.32

Finding the Fourth Proportional to 83,516.16, 115,251.48 and 45,790.32

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Solution

The fourth proportional to 83,516.16, 115,251.48 and 45,790.32 is: 63,190.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,516.16 : 115,251.48 = 45,790.32 : x
  2. Step 2: Convert to fraction form
    83,516.16/115,251.48 = 45,790.32/x
  3. Step 3: Cross multiply
    83,516.16x = 115,251.48 × 45,790.32
  4. Step 4: Simplify right side
    83,516.16x = 5,277,402,149.67
  5. Step 5: Solve for x
    x = 5,277,402,149.67/83,516.16
  6. Step 6: Final answer
    x = 63,190.19

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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.