Home / 78,845.55-118,288.31-22,684.47

Finding the Fourth Proportional to 78,845.55, 118,288.31 and 22,684.47

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Solution

The fourth proportional to 78,845.55, 118,288.31 and 22,684.47 is: 34,032.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,845.55 : 118,288.31 = 22,684.47 : x
  2. Step 2: Convert to fraction form
    78,845.55/118,288.31 = 22,684.47/x
  3. Step 3: Cross multiply
    78,845.55x = 118,288.31 × 22,684.47
  4. Step 4: Simplify right side
    78,845.55x = 2,683,307,506.12
  5. Step 5: Solve for x
    x = 2,683,307,506.12/78,845.55
  6. Step 6: Final answer
    x = 34,032.45

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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.