Home / 57,003.81-85,530.30-30,703.29

Finding the Fourth Proportional to 57,003.81, 85,530.30 and 30,703.29

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Solution

The fourth proportional to 57,003.81, 85,530.30 and 30,703.29 is: 46,068.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,003.81 : 85,530.30 = 30,703.29 : x
  2. Step 2: Convert to fraction form
    57,003.81/85,530.30 = 30,703.29/x
  3. Step 3: Cross multiply
    57,003.81x = 85,530.30 × 30,703.29
  4. Step 4: Simplify right side
    57,003.81x = 2,626,061,604.69
  5. Step 5: Solve for x
    x = 2,626,061,604.69/57,003.81
  6. Step 6: Final answer
    x = 46,068.18

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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.