Home / 105,624.26-145,762.17-57,879.62

Finding the Fourth Proportional to 105,624.26, 145,762.17 and 57,879.62

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Solution

The fourth proportional to 105,624.26, 145,762.17 and 57,879.62 is: 79,874.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,624.26 : 145,762.17 = 57,879.62 : x
  2. Step 2: Convert to fraction form
    105,624.26/145,762.17 = 57,879.62/x
  3. Step 3: Cross multiply
    105,624.26x = 145,762.17 × 57,879.62
  4. Step 4: Simplify right side
    105,624.26x = 8,436,659,009.98
  5. Step 5: Solve for x
    x = 8,436,659,009.98/105,624.26
  6. Step 6: Final answer
    x = 79,874.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.