Home / 55,783.96-83,678.63-18,343.21

Finding the Fourth Proportional to 55,783.96, 83,678.63 and 18,343.21

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Solution

The fourth proportional to 55,783.96, 83,678.63 and 18,343.21 is: 27,515.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,783.96 : 83,678.63 = 18,343.21 : x
  2. Step 2: Convert to fraction form
    55,783.96/83,678.63 = 18,343.21/x
  3. Step 3: Cross multiply
    55,783.96x = 83,678.63 × 18,343.21
  4. Step 4: Simplify right side
    55,783.96x = 1,534,934,264.21
  5. Step 5: Solve for x
    x = 1,534,934,264.21/55,783.96
  6. Step 6: Final answer
    x = 27,515.69

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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.