Home / 80,988.07-121,482.11-41,520.01

Finding the Fourth Proportional to 80,988.07, 121,482.11 and 41,520.01

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Solution

The fourth proportional to 80,988.07, 121,482.11 and 41,520.01 is: 62,280.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,988.07 : 121,482.11 = 41,520.01 : x
  2. Step 2: Convert to fraction form
    80,988.07/121,482.11 = 41,520.01/x
  3. Step 3: Cross multiply
    80,988.07x = 121,482.11 × 41,520.01
  4. Step 4: Simplify right side
    80,988.07x = 5,043,938,422.02
  5. Step 5: Solve for x
    x = 5,043,938,422.02/80,988.07
  6. Step 6: Final answer
    x = 62,280.02

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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.