Home / 77,918.28-116,889.72-25,315.48

Finding the Fourth Proportional to 77,918.28, 116,889.72 and 25,315.48

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Solution

The fourth proportional to 77,918.28, 116,889.72 and 25,315.48 is: 37,977.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,918.28 : 116,889.72 = 25,315.48 : x
  2. Step 2: Convert to fraction form
    77,918.28/116,889.72 = 25,315.48/x
  3. Step 3: Cross multiply
    77,918.28x = 116,889.72 × 25,315.48
  4. Step 4: Simplify right side
    77,918.28x = 2,959,119,368.87
  5. Step 5: Solve for x
    x = 2,959,119,368.87/77,918.28
  6. Step 6: Final answer
    x = 37,977.22

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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.