Home / 53,189.93-73,381.52-30,520.73

Finding the Fourth Proportional to 53,189.93, 73,381.52 and 30,520.73

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Solution

The fourth proportional to 53,189.93, 73,381.52 and 30,520.73 is: 42,106.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,189.93 : 73,381.52 = 30,520.73 : x
  2. Step 2: Convert to fraction form
    53,189.93/73,381.52 = 30,520.73/x
  3. Step 3: Cross multiply
    53,189.93x = 73,381.52 × 30,520.73
  4. Step 4: Simplify right side
    53,189.93x = 2,239,657,039.40
  5. Step 5: Solve for x
    x = 2,239,657,039.40/53,189.93
  6. Step 6: Final answer
    x = 42,106.79

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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.