Home / 51,128.68-76,667.06-38,361.64

Finding the Fourth Proportional to 51,128.68, 76,667.06 and 38,361.64

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Solution

The fourth proportional to 51,128.68, 76,667.06 and 38,361.64 is: 57,522.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,128.68 : 76,667.06 = 38,361.64 : x
  2. Step 2: Convert to fraction form
    51,128.68/76,667.06 = 38,361.64/x
  3. Step 3: Cross multiply
    51,128.68x = 76,667.06 × 38,361.64
  4. Step 4: Simplify right side
    51,128.68x = 2,941,074,155.58
  5. Step 5: Solve for x
    x = 2,941,074,155.58/51,128.68
  6. Step 6: Final answer
    x = 57,522.98

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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.