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Finding the Fourth Proportional to 66,496.80, 99,860.40 and 46,912.80

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Solution

The fourth proportional to 66,496.80, 99,860.40 and 46,912.80 is: 70,450.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,496.80 : 99,860.40 = 46,912.80 : x
  2. Step 2: Convert to fraction form
    66,496.80/99,860.40 = 46,912.80/x
  3. Step 3: Cross multiply
    66,496.80x = 99,860.40 × 46,912.80
  4. Step 4: Simplify right side
    66,496.80x = 4,684,730,973.12
  5. Step 5: Solve for x
    x = 4,684,730,973.12/66,496.80
  6. Step 6: Final answer
    x = 70,450.47

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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.