Home / 285,931.38-428,900.73-75,567.51

Finding the Fourth Proportional to 285,931.38, 428,900.73 and 75,567.51

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Solution

The fourth proportional to 285,931.38, 428,900.73 and 75,567.51 is: 113,352.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,931.38 : 428,900.73 = 75,567.51 : x
  2. Step 2: Convert to fraction form
    285,931.38/428,900.73 = 75,567.51/x
  3. Step 3: Cross multiply
    285,931.38x = 428,900.73 × 75,567.51
  4. Step 4: Simplify right side
    285,931.38x = 32,410,960,203.28
  5. Step 5: Solve for x
    x = 32,410,960,203.28/285,931.38
  6. Step 6: Final answer
    x = 113,352.23

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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.