Home / 66,247.41-99,368.82-18,862.80

Finding the Fourth Proportional to 66,247.41, 99,368.82 and 18,862.80

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Solution

The fourth proportional to 66,247.41, 99,368.82 and 18,862.80 is: 28,293.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,247.41 : 99,368.82 = 18,862.80 : x
  2. Step 2: Convert to fraction form
    66,247.41/99,368.82 = 18,862.80/x
  3. Step 3: Cross multiply
    66,247.41x = 99,368.82 × 18,862.80
  4. Step 4: Simplify right side
    66,247.41x = 1,874,374,177.90
  5. Step 5: Solve for x
    x = 1,874,374,177.90/66,247.41
  6. Step 6: Final answer
    x = 28,293.55

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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.