Home / 66,069.90-91,116.18-43,399.80

Finding the Fourth Proportional to 66,069.90, 91,116.18 and 43,399.80

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Solution

The fourth proportional to 66,069.90, 91,116.18 and 43,399.80 is: 59,852.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,069.90 : 91,116.18 = 43,399.80 : x
  2. Step 2: Convert to fraction form
    66,069.90/91,116.18 = 43,399.80/x
  3. Step 3: Cross multiply
    66,069.90x = 91,116.18 × 43,399.80
  4. Step 4: Simplify right side
    66,069.90x = 3,954,423,988.76
  5. Step 5: Solve for x
    x = 3,954,423,988.76/66,069.90
  6. Step 6: Final answer
    x = 59,852.13

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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.