Home / 70,288.06-105,432.20-28,735.06

Finding the Fourth Proportional to 70,288.06, 105,432.20 and 28,735.06

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Solution

The fourth proportional to 70,288.06, 105,432.20 and 28,735.06 is: 43,102.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,288.06 : 105,432.20 = 28,735.06 : x
  2. Step 2: Convert to fraction form
    70,288.06/105,432.20 = 28,735.06/x
  3. Step 3: Cross multiply
    70,288.06x = 105,432.20 × 28,735.06
  4. Step 4: Simplify right side
    70,288.06x = 3,029,600,592.93
  5. Step 5: Solve for x
    x = 3,029,600,592.93/70,288.06
  6. Step 6: Final answer
    x = 43,102.63

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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.