Home / 75,328.56-112,948.54-28,584.72

Finding the Fourth Proportional to 75,328.56, 112,948.54 and 28,584.72

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Solution

The fourth proportional to 75,328.56, 112,948.54 and 28,584.72 is: 42,860.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,328.56 : 112,948.54 = 28,584.72 : x
  2. Step 2: Convert to fraction form
    75,328.56/112,948.54 = 28,584.72/x
  3. Step 3: Cross multiply
    75,328.56x = 112,948.54 × 28,584.72
  4. Step 4: Simplify right side
    75,328.56x = 3,228,602,390.31
  5. Step 5: Solve for x
    x = 3,228,602,390.31/75,328.56
  6. Step 6: Final answer
    x = 42,860.27

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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.