Home / 78,970.10-118,420.59-23,553.14

Finding the Fourth Proportional to 78,970.10, 118,420.59 and 23,553.14

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Solution

The fourth proportional to 78,970.10, 118,420.59 and 23,553.14 is: 35,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,970.10 : 118,420.59 = 23,553.14 : x
  2. Step 2: Convert to fraction form
    78,970.10/118,420.59 = 23,553.14/x
  3. Step 3: Cross multiply
    78,970.10x = 118,420.59 × 23,553.14
  4. Step 4: Simplify right side
    78,970.10x = 2,789,176,735.15
  5. Step 5: Solve for x
    x = 2,789,176,735.15/78,970.10
  6. Step 6: Final answer
    x = 35,319.40

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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.