Home / 78,730.10-118,059.61-22,557.36

Finding the Fourth Proportional to 78,730.10, 118,059.61 and 22,557.36

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Solution

The fourth proportional to 78,730.10, 118,059.61 and 22,557.36 is: 33,825.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,730.10 : 118,059.61 = 22,557.36 : x
  2. Step 2: Convert to fraction form
    78,730.10/118,059.61 = 22,557.36/x
  3. Step 3: Cross multiply
    78,730.10x = 118,059.61 × 22,557.36
  4. Step 4: Simplify right side
    78,730.10x = 2,663,112,533.93
  5. Step 5: Solve for x
    x = 2,663,112,533.93/78,730.10
  6. Step 6: Final answer
    x = 33,825.85

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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.