Home / 66,701.40-99,965.70-48,211.80

Finding the Fourth Proportional to 66,701.40, 99,965.70 and 48,211.80

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Solution

The fourth proportional to 66,701.40, 99,965.70 and 48,211.80 is: 72,255.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,701.40 : 99,965.70 = 48,211.80 : x
  2. Step 2: Convert to fraction form
    66,701.40/99,965.70 = 48,211.80/x
  3. Step 3: Cross multiply
    66,701.40x = 99,965.70 × 48,211.80
  4. Step 4: Simplify right side
    66,701.40x = 4,819,526,335.26
  5. Step 5: Solve for x
    x = 4,819,526,335.26/66,701.40
  6. Step 6: Final answer
    x = 72,255.25

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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.