Home / 75,432.21-113,172.90-35,984.19

Finding the Fourth Proportional to 75,432.21, 113,172.90 and 35,984.19

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Solution

The fourth proportional to 75,432.21, 113,172.90 and 35,984.19 is: 53,988.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,432.21 : 113,172.90 = 35,984.19 : x
  2. Step 2: Convert to fraction form
    75,432.21/113,172.90 = 35,984.19/x
  3. Step 3: Cross multiply
    75,432.21x = 113,172.90 × 35,984.19
  4. Step 4: Simplify right side
    75,432.21x = 4,072,435,136.45
  5. Step 5: Solve for x
    x = 4,072,435,136.45/75,432.21
  6. Step 6: Final answer
    x = 53,988.01

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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.