Home / 75,278.33-112,916.94-19,118.60

Finding the Fourth Proportional to 75,278.33, 112,916.94 and 19,118.60

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Solution

The fourth proportional to 75,278.33, 112,916.94 and 19,118.60 is: 28,677.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,278.33 : 112,916.94 = 19,118.60 : x
  2. Step 2: Convert to fraction form
    75,278.33/112,916.94 = 19,118.60/x
  3. Step 3: Cross multiply
    75,278.33x = 112,916.94 × 19,118.60
  4. Step 4: Simplify right side
    75,278.33x = 2,158,813,244.50
  5. Step 5: Solve for x
    x = 2,158,813,244.50/75,278.33
  6. Step 6: Final answer
    x = 28,677.75

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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.