Home / 66,787.84-100,181.52-16,868.16

Finding the Fourth Proportional to 66,787.84, 100,181.52 and 16,868.16

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Solution

The fourth proportional to 66,787.84, 100,181.52 and 16,868.16 is: 25,302.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,787.84 : 100,181.52 = 16,868.16 : x
  2. Step 2: Convert to fraction form
    66,787.84/100,181.52 = 16,868.16/x
  3. Step 3: Cross multiply
    66,787.84x = 100,181.52 × 16,868.16
  4. Step 4: Simplify right side
    66,787.84x = 1,689,877,908.40
  5. Step 5: Solve for x
    x = 1,689,877,908.40/66,787.84
  6. Step 6: Final answer
    x = 25,302.18

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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.