Home / 75,728.19-104,522.72-47,069.50

Finding the Fourth Proportional to 75,728.19, 104,522.72 and 47,069.50

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Solution

The fourth proportional to 75,728.19, 104,522.72 and 47,069.50 is: 64,966.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,728.19 : 104,522.72 = 47,069.50 : x
  2. Step 2: Convert to fraction form
    75,728.19/104,522.72 = 47,069.50/x
  3. Step 3: Cross multiply
    75,728.19x = 104,522.72 × 47,069.50
  4. Step 4: Simplify right side
    75,728.19x = 4,919,832,169.04
  5. Step 5: Solve for x
    x = 4,919,832,169.04/75,728.19
  6. Step 6: Final answer
    x = 64,966.98

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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.