Home / 53,003.09-73,140.81-30,342.26

Finding the Fourth Proportional to 53,003.09, 73,140.81 and 30,342.26

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Solution

The fourth proportional to 53,003.09, 73,140.81 and 30,342.26 is: 41,870.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,003.09 : 73,140.81 = 30,342.26 : x
  2. Step 2: Convert to fraction form
    53,003.09/73,140.81 = 30,342.26/x
  3. Step 3: Cross multiply
    53,003.09x = 73,140.81 × 30,342.26
  4. Step 4: Simplify right side
    53,003.09x = 2,219,257,107.93
  5. Step 5: Solve for x
    x = 2,219,257,107.93/53,003.09
  6. Step 6: Final answer
    x = 41,870.34

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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.