Home / 90,066.76-124,298.57-49,779.65

Finding the Fourth Proportional to 90,066.76, 124,298.57 and 49,779.65

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Solution

The fourth proportional to 90,066.76, 124,298.57 and 49,779.65 is: 68,699.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,066.76 : 124,298.57 = 49,779.65 : x
  2. Step 2: Convert to fraction form
    90,066.76/124,298.57 = 49,779.65/x
  3. Step 3: Cross multiply
    90,066.76x = 124,298.57 × 49,779.65
  4. Step 4: Simplify right side
    90,066.76x = 6,187,539,745.30
  5. Step 5: Solve for x
    x = 6,187,539,745.30/90,066.76
  6. Step 6: Final answer
    x = 68,699.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.