Home / 75,787.55-113,681.70-19,623.72

Finding the Fourth Proportional to 75,787.55, 113,681.70 and 19,623.72

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Solution

The fourth proportional to 75,787.55, 113,681.70 and 19,623.72 is: 29,435.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,787.55 : 113,681.70 = 19,623.72 : x
  2. Step 2: Convert to fraction form
    75,787.55/113,681.70 = 19,623.72/x
  3. Step 3: Cross multiply
    75,787.55x = 113,681.70 × 19,623.72
  4. Step 4: Simplify right side
    75,787.55x = 2,230,857,849.92
  5. Step 5: Solve for x
    x = 2,230,857,849.92/75,787.55
  6. Step 6: Final answer
    x = 29,435.68

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1.5x scale

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.