Home / 78,763.68-118,145.94-19,599.36

Finding the Fourth Proportional to 78,763.68, 118,145.94 and 19,599.36

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Solution

The fourth proportional to 78,763.68, 118,145.94 and 19,599.36 is: 29,399.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,763.68 : 118,145.94 = 19,599.36 : x
  2. Step 2: Convert to fraction form
    78,763.68/118,145.94 = 19,599.36/x
  3. Step 3: Cross multiply
    78,763.68x = 118,145.94 × 19,599.36
  4. Step 4: Simplify right side
    78,763.68x = 2,315,584,810.60
  5. Step 5: Solve for x
    x = 2,315,584,810.60/78,763.68
  6. Step 6: Final answer
    x = 29,399.14

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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.