Home / 101,022.19-139,379.70-58,572.25

Finding the Fourth Proportional to 101,022.19, 139,379.70 and 58,572.25

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Solution

The fourth proportional to 101,022.19, 139,379.70 and 58,572.25 is: 80,811.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,022.19 : 139,379.70 = 58,572.25 : x
  2. Step 2: Convert to fraction form
    101,022.19/139,379.70 = 58,572.25/x
  3. Step 3: Cross multiply
    101,022.19x = 139,379.70 × 58,572.25
  4. Step 4: Simplify right side
    101,022.19x = 8,163,781,936.43
  5. Step 5: Solve for x
    x = 8,163,781,936.43/101,022.19
  6. Step 6: Final answer
    x = 80,811.77

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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.