Home / 66,770.40-92,137.70-38,089.92

Finding the Fourth Proportional to 66,770.40, 92,137.70 and 38,089.92

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Solution

The fourth proportional to 66,770.40, 92,137.70 and 38,089.92 is: 52,560.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,770.40 : 92,137.70 = 38,089.92 : x
  2. Step 2: Convert to fraction form
    66,770.40/92,137.70 = 38,089.92/x
  3. Step 3: Cross multiply
    66,770.40x = 92,137.70 × 38,089.92
  4. Step 4: Simplify right side
    66,770.40x = 3,509,517,621.98
  5. Step 5: Solve for x
    x = 3,509,517,621.98/66,770.40
  6. Step 6: Final answer
    x = 52,560.98

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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.