Home / 66,734.75-92,084.84-39,871.55

Finding the Fourth Proportional to 66,734.75, 92,084.84 and 39,871.55

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Solution

The fourth proportional to 66,734.75, 92,084.84 and 39,871.55 is: 55,017.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,734.75 : 92,084.84 = 39,871.55 : x
  2. Step 2: Convert to fraction form
    66,734.75/92,084.84 = 39,871.55/x
  3. Step 3: Cross multiply
    66,734.75x = 92,084.84 × 39,871.55
  4. Step 4: Simplify right side
    66,734.75x = 3,671,565,302.30
  5. Step 5: Solve for x
    x = 3,671,565,302.30/66,734.75
  6. Step 6: Final answer
    x = 55,017.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.