Home / 81,830.89-122,746.24-25,675.93

Finding the Fourth Proportional to 81,830.89, 122,746.24 and 25,675.93

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Solution

The fourth proportional to 81,830.89, 122,746.24 and 25,675.93 is: 38,513.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,830.89 : 122,746.24 = 25,675.93 : x
  2. Step 2: Convert to fraction form
    81,830.89/122,746.24 = 25,675.93/x
  3. Step 3: Cross multiply
    81,830.89x = 122,746.24 × 25,675.93
  4. Step 4: Simplify right side
    81,830.89x = 3,151,623,866.00
  5. Step 5: Solve for x
    x = 3,151,623,866.00/81,830.89
  6. Step 6: Final answer
    x = 38,513.87

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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.