Home / 82,108.48-122,999.90-56,746.58

Finding the Fourth Proportional to 82,108.48, 122,999.90 and 56,746.58

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Solution

The fourth proportional to 82,108.48, 122,999.90 and 56,746.58 is: 85,007.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,108.48 : 122,999.90 = 56,746.58 : x
  2. Step 2: Convert to fraction form
    82,108.48/122,999.90 = 56,746.58/x
  3. Step 3: Cross multiply
    82,108.48x = 122,999.90 × 56,746.58
  4. Step 4: Simplify right side
    82,108.48x = 6,979,823,665.34
  5. Step 5: Solve for x
    x = 6,979,823,665.34/82,108.48
  6. Step 6: Final answer
    x = 85,007.34

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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.