Home / 59,138.51-88,709.01-21,190.25

Finding the Fourth Proportional to 59,138.51, 88,709.01 and 21,190.25

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Solution

The fourth proportional to 59,138.51, 88,709.01 and 21,190.25 is: 31,785.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,138.51 : 88,709.01 = 21,190.25 : x
  2. Step 2: Convert to fraction form
    59,138.51/88,709.01 = 21,190.25/x
  3. Step 3: Cross multiply
    59,138.51x = 88,709.01 × 21,190.25
  4. Step 4: Simplify right side
    59,138.51x = 1,879,765,549.66
  5. Step 5: Solve for x
    x = 1,879,765,549.66/59,138.51
  6. Step 6: Final answer
    x = 31,785.81

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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.