Home / 82,500.36-123,772.86-38,090.76

Finding the Fourth Proportional to 82,500.36, 123,772.86 and 38,090.76

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Solution

The fourth proportional to 82,500.36, 123,772.86 and 38,090.76 is: 57,146.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,500.36 : 123,772.86 = 38,090.76 : x
  2. Step 2: Convert to fraction form
    82,500.36/123,772.86 = 38,090.76/x
  3. Step 3: Cross multiply
    82,500.36x = 123,772.86 × 38,090.76
  4. Step 4: Simplify right side
    82,500.36x = 4,714,602,304.77
  5. Step 5: Solve for x
    x = 4,714,602,304.77/82,500.36
  6. Step 6: Final answer
    x = 57,146.45

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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.