Home / 82,708.65-124,247.48-51,142.05

Finding the Fourth Proportional to 82,708.65, 124,247.48 and 51,142.05

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Solution

The fourth proportional to 82,708.65, 124,247.48 and 51,142.05 is: 76,827.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,708.65 : 124,247.48 = 51,142.05 : x
  2. Step 2: Convert to fraction form
    82,708.65/124,247.48 = 51,142.05/x
  3. Step 3: Cross multiply
    82,708.65x = 124,247.48 × 51,142.05
  4. Step 4: Simplify right side
    82,708.65x = 6,354,270,578.82
  5. Step 5: Solve for x
    x = 6,354,270,578.82/82,708.65
  6. Step 6: Final answer
    x = 76,827.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.