Home / 55,649.40-83,485.05-20,589.36

Finding the Fourth Proportional to 55,649.40, 83,485.05 and 20,589.36

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Solution

The fourth proportional to 55,649.40, 83,485.05 and 20,589.36 is: 30,888.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,649.40 : 83,485.05 = 20,589.36 : x
  2. Step 2: Convert to fraction form
    55,649.40/83,485.05 = 20,589.36/x
  3. Step 3: Cross multiply
    55,649.40x = 83,485.05 × 20,589.36
  4. Step 4: Simplify right side
    55,649.40x = 1,718,903,749.07
  5. Step 5: Solve for x
    x = 1,718,903,749.07/55,649.40
  6. Step 6: Final answer
    x = 30,888.09

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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.