Home / 77,246.18-115,775.70-32,779.52

Finding the Fourth Proportional to 77,246.18, 115,775.70 and 32,779.52

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Solution

The fourth proportional to 77,246.18, 115,775.70 and 32,779.52 is: 49,129.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,246.18 : 115,775.70 = 32,779.52 : x
  2. Step 2: Convert to fraction form
    77,246.18/115,775.70 = 32,779.52/x
  3. Step 3: Cross multiply
    77,246.18x = 115,775.70 × 32,779.52
  4. Step 4: Simplify right side
    77,246.18x = 3,795,071,606.02
  5. Step 5: Solve for x
    x = 3,795,071,606.02/77,246.18
  6. Step 6: Final answer
    x = 49,129.57

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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.