Home / 61,541.25-91,828.84-57,779.61

Finding the Fourth Proportional to 61,541.25, 91,828.84 and 57,779.61

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Solution

The fourth proportional to 61,541.25, 91,828.84 and 57,779.61 is: 86,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,541.25 : 91,828.84 = 57,779.61 : x
  2. Step 2: Convert to fraction form
    61,541.25/91,828.84 = 57,779.61/x
  3. Step 3: Cross multiply
    61,541.25x = 91,828.84 × 57,779.61
  4. Step 4: Simplify right side
    61,541.25x = 5,305,834,417.50
  5. Step 5: Solve for x
    x = 5,305,834,417.50/61,541.25
  6. Step 6: Final answer
    x = 86,215.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.