Home / 53,340.12-80,019.90-18,283.32

Finding the Fourth Proportional to 53,340.12, 80,019.90 and 18,283.32

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Solution

The fourth proportional to 53,340.12, 80,019.90 and 18,283.32 is: 27,428.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,340.12 : 80,019.90 = 18,283.32 : x
  2. Step 2: Convert to fraction form
    53,340.12/80,019.90 = 18,283.32/x
  3. Step 3: Cross multiply
    53,340.12x = 80,019.90 × 18,283.32
  4. Step 4: Simplify right side
    53,340.12x = 1,463,029,438.07
  5. Step 5: Solve for x
    x = 1,463,029,438.07/53,340.12
  6. Step 6: Final answer
    x = 27,428.31

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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.