Home / 70,331.23-105,493.60-20,410.32

Finding the Fourth Proportional to 70,331.23, 105,493.60 and 20,410.32

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Solution

The fourth proportional to 70,331.23, 105,493.60 and 20,410.32 is: 30,614.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,331.23 : 105,493.60 = 20,410.32 : x
  2. Step 2: Convert to fraction form
    70,331.23/105,493.60 = 20,410.32/x
  3. Step 3: Cross multiply
    70,331.23x = 105,493.60 × 20,410.32
  4. Step 4: Simplify right side
    70,331.23x = 2,153,158,082.93
  5. Step 5: Solve for x
    x = 2,153,158,082.93/70,331.23
  6. Step 6: Final answer
    x = 30,614.54

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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.