Home / 76,143.98-114,219.72-19,984.25

Finding the Fourth Proportional to 76,143.98, 114,219.72 and 19,984.25

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Solution

The fourth proportional to 76,143.98, 114,219.72 and 19,984.25 is: 29,977.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,143.98 : 114,219.72 = 19,984.25 : x
  2. Step 2: Convert to fraction form
    76,143.98/114,219.72 = 19,984.25/x
  3. Step 3: Cross multiply
    76,143.98x = 114,219.72 × 19,984.25
  4. Step 4: Simplify right side
    76,143.98x = 2,282,594,868.31
  5. Step 5: Solve for x
    x = 2,282,594,868.31/76,143.98
  6. Step 6: Final answer
    x = 29,977.35

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1.5x scale

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.