Home / 70,687.32-106,030.44-18,096.72

Finding the Fourth Proportional to 70,687.32, 106,030.44 and 18,096.72

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Solution

The fourth proportional to 70,687.32, 106,030.44 and 18,096.72 is: 27,144.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,687.32 : 106,030.44 = 18,096.72 : x
  2. Step 2: Convert to fraction form
    70,687.32/106,030.44 = 18,096.72/x
  3. Step 3: Cross multiply
    70,687.32x = 106,030.44 × 18,096.72
  4. Step 4: Simplify right side
    70,687.32x = 1,918,803,184.16
  5. Step 5: Solve for x
    x = 1,918,803,184.16/70,687.32
  6. Step 6: Final answer
    x = 27,144.94

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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.