Home / 82,785.13-124,090.75-40,606.81

Finding the Fourth Proportional to 82,785.13, 124,090.75 and 40,606.81

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Solution

The fourth proportional to 82,785.13, 124,090.75 and 40,606.81 is: 60,867.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,785.13 : 124,090.75 = 40,606.81 : x
  2. Step 2: Convert to fraction form
    82,785.13/124,090.75 = 40,606.81/x
  3. Step 3: Cross multiply
    82,785.13x = 124,090.75 × 40,606.81
  4. Step 4: Simplify right side
    82,785.13x = 5,038,929,508.01
  5. Step 5: Solve for x
    x = 5,038,929,508.01/82,785.13
  6. Step 6: Final answer
    x = 60,867.57

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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.