Home / 55,765.14-83,630.43-18,820.50

Finding the Fourth Proportional to 55,765.14, 83,630.43 and 18,820.50

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Solution

The fourth proportional to 55,765.14, 83,630.43 and 18,820.50 is: 28,224.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,765.14 : 83,630.43 = 18,820.50 : x
  2. Step 2: Convert to fraction form
    55,765.14/83,630.43 = 18,820.50/x
  3. Step 3: Cross multiply
    55,765.14x = 83,630.43 × 18,820.50
  4. Step 4: Simplify right side
    55,765.14x = 1,573,966,507.82
  5. Step 5: Solve for x
    x = 1,573,966,507.82/55,765.14
  6. Step 6: Final answer
    x = 28,224.92

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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.