Home / 66,026.95-91,118.43-40,520.55

Finding the Fourth Proportional to 66,026.95, 91,118.43 and 40,520.55

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Solution

The fourth proportional to 66,026.95, 91,118.43 and 40,520.55 is: 55,919.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,026.95 : 91,118.43 = 40,520.55 : x
  2. Step 2: Convert to fraction form
    66,026.95/91,118.43 = 40,520.55/x
  3. Step 3: Cross multiply
    66,026.95x = 91,118.43 × 40,520.55
  4. Step 4: Simplify right side
    66,026.95x = 3,692,168,443.14
  5. Step 5: Solve for x
    x = 3,692,168,443.14/66,026.95
  6. Step 6: Final answer
    x = 55,919.11

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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.