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Finding the Fourth Proportional to 70,600.60, 105,900.90 and 52,885.90

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Solution

The fourth proportional to 70,600.60, 105,900.90 and 52,885.90 is: 79,328.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,600.60 : 105,900.90 = 52,885.90 : x
  2. Step 2: Convert to fraction form
    70,600.60/105,900.90 = 52,885.90/x
  3. Step 3: Cross multiply
    70,600.60x = 105,900.90 × 52,885.90
  4. Step 4: Simplify right side
    70,600.60x = 5,600,664,407.31
  5. Step 5: Solve for x
    x = 5,600,664,407.31/70,600.60
  6. Step 6: Final answer
    x = 79,328.85

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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.