Home / 43,405.98-65,434.30-40,512.63

Finding the Fourth Proportional to 43,405.98, 65,434.30 and 40,512.63

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Solution

The fourth proportional to 43,405.98, 65,434.30 and 40,512.63 is: 61,072.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,405.98 : 65,434.30 = 40,512.63 : x
  2. Step 2: Convert to fraction form
    43,405.98/65,434.30 = 40,512.63/x
  3. Step 3: Cross multiply
    43,405.98x = 65,434.30 × 40,512.63
  4. Step 4: Simplify right side
    43,405.98x = 2,650,915,647.51
  5. Step 5: Solve for x
    x = 2,650,915,647.51/43,405.98
  6. Step 6: Final answer
    x = 61,072.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.