Home / 76,780.12-105,963.06-43,252.60

Finding the Fourth Proportional to 76,780.12, 105,963.06 and 43,252.60

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Solution

The fourth proportional to 76,780.12, 105,963.06 and 43,252.60 is: 59,692.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,780.12 : 105,963.06 = 43,252.60 : x
  2. Step 2: Convert to fraction form
    76,780.12/105,963.06 = 43,252.60/x
  3. Step 3: Cross multiply
    76,780.12x = 105,963.06 × 43,252.60
  4. Step 4: Simplify right side
    76,780.12x = 4,583,177,848.96
  5. Step 5: Solve for x
    x = 4,583,177,848.96/76,780.12
  6. Step 6: Final answer
    x = 59,692.25

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1.5x scale

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.