Home / 81,326.09-112,229.01-45,516.40

Finding the Fourth Proportional to 81,326.09, 112,229.01 and 45,516.40

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Solution

The fourth proportional to 81,326.09, 112,229.01 and 45,516.40 is: 62,812.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,326.09 : 112,229.01 = 45,516.40 : x
  2. Step 2: Convert to fraction form
    81,326.09/112,229.01 = 45,516.40/x
  3. Step 3: Cross multiply
    81,326.09x = 112,229.01 × 45,516.40
  4. Step 4: Simplify right side
    81,326.09x = 5,108,260,230.19
  5. Step 5: Solve for x
    x = 5,108,260,230.19/81,326.09
  6. Step 6: Final answer
    x = 62,812.07

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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.