Home / 78,018.25-116,957.12-28,063.23

Finding the Fourth Proportional to 78,018.25, 116,957.12 and 28,063.23

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Solution

The fourth proportional to 78,018.25, 116,957.12 and 28,063.23 is: 42,069.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,018.25 : 116,957.12 = 28,063.23 : x
  2. Step 2: Convert to fraction form
    78,018.25/116,957.12 = 28,063.23/x
  3. Step 3: Cross multiply
    78,018.25x = 116,957.12 × 28,063.23
  4. Step 4: Simplify right side
    78,018.25x = 3,282,194,628.86
  5. Step 5: Solve for x
    x = 3,282,194,628.86/78,018.25
  6. Step 6: Final answer
    x = 42,069.58

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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.