Home / 78,815.08-108,768.98-45,283.24

Finding the Fourth Proportional to 78,815.08, 108,768.98 and 45,283.24

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Solution

The fourth proportional to 78,815.08, 108,768.98 and 45,283.24 is: 62,493.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,815.08 : 108,768.98 = 45,283.24 : x
  2. Step 2: Convert to fraction form
    78,815.08/108,768.98 = 45,283.24/x
  3. Step 3: Cross multiply
    78,815.08x = 108,768.98 × 45,283.24
  4. Step 4: Simplify right side
    78,815.08x = 4,925,411,825.90
  5. Step 5: Solve for x
    x = 4,925,411,825.90/78,815.08
  6. Step 6: Final answer
    x = 62,493.27

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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.