Home / 70,520.10-97,311.54-40,299.42

Finding the Fourth Proportional to 70,520.10, 97,311.54 and 40,299.42

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Solution

The fourth proportional to 70,520.10, 97,311.54 and 40,299.42 is: 55,609.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,520.10 : 97,311.54 = 40,299.42 : x
  2. Step 2: Convert to fraction form
    70,520.10/97,311.54 = 40,299.42/x
  3. Step 3: Cross multiply
    70,520.10x = 97,311.54 × 40,299.42
  4. Step 4: Simplify right side
    70,520.10x = 3,921,598,621.31
  5. Step 5: Solve for x
    x = 3,921,598,621.31/70,520.10
  6. Step 6: Final answer
    x = 55,609.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.