Home / 75,780.28-104,621.58-67,373.50

Finding the Fourth Proportional to 75,780.28, 104,621.58 and 67,373.50

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Solution

The fourth proportional to 75,780.28, 104,621.58 and 67,373.50 is: 93,015.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,780.28 : 104,621.58 = 67,373.50 : x
  2. Step 2: Convert to fraction form
    75,780.28/104,621.58 = 67,373.50/x
  3. Step 3: Cross multiply
    75,780.28x = 104,621.58 × 67,373.50
  4. Step 4: Simplify right side
    75,780.28x = 7,048,722,020.13
  5. Step 5: Solve for x
    x = 7,048,722,020.13/75,780.28
  6. Step 6: Final answer
    x = 93,015.25

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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.