Home / 75,853.84-113,779.86-19,688.94

Finding the Fourth Proportional to 75,853.84, 113,779.86 and 19,688.94

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Solution

The fourth proportional to 75,853.84, 113,779.86 and 19,688.94 is: 29,533.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,853.84 : 113,779.86 = 19,688.94 : x
  2. Step 2: Convert to fraction form
    75,853.84/113,779.86 = 19,688.94/x
  3. Step 3: Cross multiply
    75,853.84x = 113,779.86 × 19,688.94
  4. Step 4: Simplify right side
    75,853.84x = 2,240,204,836.75
  5. Step 5: Solve for x
    x = 2,240,204,836.75/75,853.84
  6. Step 6: Final answer
    x = 29,533.18

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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.