Home / 78,467.14-108,285.36-42,657.16

Finding the Fourth Proportional to 78,467.14, 108,285.36 and 42,657.16

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Solution

The fourth proportional to 78,467.14, 108,285.36 and 42,657.16 is: 58,867.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,467.14 : 108,285.36 = 42,657.16 : x
  2. Step 2: Convert to fraction form
    78,467.14/108,285.36 = 42,657.16/x
  3. Step 3: Cross multiply
    78,467.14x = 108,285.36 × 42,657.16
  4. Step 4: Simplify right side
    78,467.14x = 4,619,145,927.18
  5. Step 5: Solve for x
    x = 4,619,145,927.18/78,467.14
  6. Step 6: Final answer
    x = 58,867.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.