Home / 55,541.45-83,346.01-19,999.79

Finding the Fourth Proportional to 55,541.45, 83,346.01 and 19,999.79

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Solution

The fourth proportional to 55,541.45, 83,346.01 and 19,999.79 is: 30,011.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,541.45 : 83,346.01 = 19,999.79 : x
  2. Step 2: Convert to fraction form
    55,541.45/83,346.01 = 19,999.79/x
  3. Step 3: Cross multiply
    55,541.45x = 83,346.01 × 19,999.79
  4. Step 4: Simplify right side
    55,541.45x = 1,666,902,855.70
  5. Step 5: Solve for x
    x = 1,666,902,855.70/55,541.45
  6. Step 6: Final answer
    x = 30,011.87

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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.