Home / 68,736.25-102,970.14-47,385.19

Finding the Fourth Proportional to 68,736.25, 102,970.14 and 47,385.19

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Solution

The fourth proportional to 68,736.25, 102,970.14 and 47,385.19 is: 70,985.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,736.25 : 102,970.14 = 47,385.19 : x
  2. Step 2: Convert to fraction form
    68,736.25/102,970.14 = 47,385.19/x
  3. Step 3: Cross multiply
    68,736.25x = 102,970.14 × 47,385.19
  4. Step 4: Simplify right side
    68,736.25x = 4,879,259,648.23
  5. Step 5: Solve for x
    x = 4,879,259,648.23/68,736.25
  6. Step 6: Final answer
    x = 70,985.25

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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.