Home / 75,783.58-113,529.90-42,402.54

Finding the Fourth Proportional to 75,783.58, 113,529.90 and 42,402.54

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Solution

The fourth proportional to 75,783.58, 113,529.90 and 42,402.54 is: 63,522.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,783.58 : 113,529.90 = 42,402.54 : x
  2. Step 2: Convert to fraction form
    75,783.58/113,529.90 = 42,402.54/x
  3. Step 3: Cross multiply
    75,783.58x = 113,529.90 × 42,402.54
  4. Step 4: Simplify right side
    75,783.58x = 4,813,956,125.95
  5. Step 5: Solve for x
    x = 4,813,956,125.95/75,783.58
  6. Step 6: Final answer
    x = 63,522.42

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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.