Home / 70,376.37-105,565.23-17,785.86

Finding the Fourth Proportional to 70,376.37, 105,565.23 and 17,785.86

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Solution

The fourth proportional to 70,376.37, 105,565.23 and 17,785.86 is: 26,678.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,376.37 : 105,565.23 = 17,785.86 : x
  2. Step 2: Convert to fraction form
    70,376.37/105,565.23 = 17,785.86/x
  3. Step 3: Cross multiply
    70,376.37x = 105,565.23 × 17,785.86
  4. Step 4: Simplify right side
    70,376.37x = 1,877,567,873.82
  5. Step 5: Solve for x
    x = 1,877,567,873.82/70,376.37
  6. Step 6: Final answer
    x = 26,678.95

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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.