Home / 70,827.12-106,252.56-28,710

Finding the Fourth Proportional to 70,827.12, 106,252.56 and 28,710

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Solution

The fourth proportional to 70,827.12, 106,252.56 and 28,710 is: 43,069.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,827.12 : 106,252.56 = 28,710 : x
  2. Step 2: Convert to fraction form
    70,827.12/106,252.56 = 28,710/x
  3. Step 3: Cross multiply
    70,827.12x = 106,252.56 × 28,710
  4. Step 4: Simplify right side
    70,827.12x = 3,050,510,997.60
  5. Step 5: Solve for x
    x = 3,050,510,997.60/70,827.12
  6. Step 6: Final answer
    x = 43,069.82

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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.