Home / 70,313.02-105,469.26-28,211.92

Finding the Fourth Proportional to 70,313.02, 105,469.26 and 28,211.92

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Solution

The fourth proportional to 70,313.02, 105,469.26 and 28,211.92 is: 42,317.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,313.02 : 105,469.26 = 28,211.92 : x
  2. Step 2: Convert to fraction form
    70,313.02/105,469.26 = 28,211.92/x
  3. Step 3: Cross multiply
    70,313.02x = 105,469.26 × 28,211.92
  4. Step 4: Simplify right side
    70,313.02x = 2,975,490,325.58
  5. Step 5: Solve for x
    x = 2,975,490,325.58/70,313.02
  6. Step 6: Final answer
    x = 42,317.77

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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.