Home / 70,272.32-105,317.89-61,229.77

Finding the Fourth Proportional to 70,272.32, 105,317.89 and 61,229.77

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Solution

The fourth proportional to 70,272.32, 105,317.89 and 61,229.77 is: 91,765.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,272.32 : 105,317.89 = 61,229.77 : x
  2. Step 2: Convert to fraction form
    70,272.32/105,317.89 = 61,229.77/x
  3. Step 3: Cross multiply
    70,272.32x = 105,317.89 × 61,229.77
  4. Step 4: Simplify right side
    70,272.32x = 6,448,589,765.22
  5. Step 5: Solve for x
    x = 6,448,589,765.22/70,272.32
  6. Step 6: Final answer
    x = 91,765.72

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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.