Home / 70,200.10-105,284.66-20,269.34

Finding the Fourth Proportional to 70,200.10, 105,284.66 and 20,269.34

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Solution

The fourth proportional to 70,200.10, 105,284.66 and 20,269.34 is: 30,399.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,200.10 : 105,284.66 = 20,269.34 : x
  2. Step 2: Convert to fraction form
    70,200.10/105,284.66 = 20,269.34/x
  3. Step 3: Cross multiply
    70,200.10x = 105,284.66 × 20,269.34
  4. Step 4: Simplify right side
    70,200.10x = 2,134,050,570.32
  5. Step 5: Solve for x
    x = 2,134,050,570.32/70,200.10
  6. Step 6: Final answer
    x = 30,399.54

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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.