Home / 75,195.16-103,765.36-42,928.50

Finding the Fourth Proportional to 75,195.16, 103,765.36 and 42,928.50

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Solution

The fourth proportional to 75,195.16, 103,765.36 and 42,928.50 is: 59,239.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,195.16 : 103,765.36 = 42,928.50 : x
  2. Step 2: Convert to fraction form
    75,195.16/103,765.36 = 42,928.50/x
  3. Step 3: Cross multiply
    75,195.16x = 103,765.36 × 42,928.50
  4. Step 4: Simplify right side
    75,195.16x = 4,454,491,256.76
  5. Step 5: Solve for x
    x = 4,454,491,256.76/75,195.16
  6. Step 6: Final answer
    x = 59,239.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.