Home / 84,870.14-117,199.56-54,725.98

Finding the Fourth Proportional to 84,870.14, 117,199.56 and 54,725.98

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Solution

The fourth proportional to 84,870.14, 117,199.56 and 54,725.98 is: 75,572.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,870.14 : 117,199.56 = 54,725.98 : x
  2. Step 2: Convert to fraction form
    84,870.14/117,199.56 = 54,725.98/x
  3. Step 3: Cross multiply
    84,870.14x = 117,199.56 × 54,725.98
  4. Step 4: Simplify right side
    84,870.14x = 6,413,860,776.57
  5. Step 5: Solve for x
    x = 6,413,860,776.57/84,870.14
  6. Step 6: Final answer
    x = 75,572.64

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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.