Home / 54,368.80-81,533.62-18,820.46

Finding the Fourth Proportional to 54,368.80, 81,533.62 and 18,820.46

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Solution

The fourth proportional to 54,368.80, 81,533.62 and 18,820.46 is: 28,223.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,368.80 : 81,533.62 = 18,820.46 : x
  2. Step 2: Convert to fraction form
    54,368.80/81,533.62 = 18,820.46/x
  3. Step 3: Cross multiply
    54,368.80x = 81,533.62 × 18,820.46
  4. Step 4: Simplify right side
    54,368.80x = 1,534,500,233.87
  5. Step 5: Solve for x
    x = 1,534,500,233.87/54,368.80
  6. Step 6: Final answer
    x = 28,223.91

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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.