Home / 77,042.50-115,366.43-53,317.19

Finding the Fourth Proportional to 77,042.50, 115,366.43 and 53,317.19

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Solution

The fourth proportional to 77,042.50, 115,366.43 and 53,317.19 is: 79,839.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,042.50 : 115,366.43 = 53,317.19 : x
  2. Step 2: Convert to fraction form
    77,042.50/115,366.43 = 53,317.19/x
  3. Step 3: Cross multiply
    77,042.50x = 115,366.43 × 53,317.19
  4. Step 4: Simplify right side
    77,042.50x = 6,151,014,289.64
  5. Step 5: Solve for x
    x = 6,151,014,289.64/77,042.50
  6. Step 6: Final answer
    x = 79,839.24

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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.