Home / 70,288.34-105,432.57-28,735.34

Finding the Fourth Proportional to 70,288.34, 105,432.57 and 28,735.34

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Solution

The fourth proportional to 70,288.34, 105,432.57 and 28,735.34 is: 43,103.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,288.34 : 105,432.57 = 28,735.34 : x
  2. Step 2: Convert to fraction form
    70,288.34/105,432.57 = 28,735.34/x
  3. Step 3: Cross multiply
    70,288.34x = 105,432.57 × 28,735.34
  4. Step 4: Simplify right side
    70,288.34x = 3,029,640,218.86
  5. Step 5: Solve for x
    x = 3,029,640,218.86/70,288.34
  6. Step 6: Final answer
    x = 43,103.03

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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.