Home / 78,359.04-117,537.75-19,195.02

Finding the Fourth Proportional to 78,359.04, 117,537.75 and 19,195.02

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Solution

The fourth proportional to 78,359.04, 117,537.75 and 19,195.02 is: 28,792.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,359.04 : 117,537.75 = 19,195.02 : x
  2. Step 2: Convert to fraction form
    78,359.04/117,537.75 = 19,195.02/x
  3. Step 3: Cross multiply
    78,359.04x = 117,537.75 × 19,195.02
  4. Step 4: Simplify right side
    78,359.04x = 2,256,139,462.01
  5. Step 5: Solve for x
    x = 2,256,139,462.01/78,359.04
  6. Step 6: Final answer
    x = 28,792.33

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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.