Home / 90,610.12-135,880.56-29,806.25

Finding the Fourth Proportional to 90,610.12, 135,880.56 and 29,806.25

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Solution

The fourth proportional to 90,610.12, 135,880.56 and 29,806.25 is: 44,697.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,610.12 : 135,880.56 = 29,806.25 : x
  2. Step 2: Convert to fraction form
    90,610.12/135,880.56 = 29,806.25/x
  3. Step 3: Cross multiply
    90,610.12x = 135,880.56 × 29,806.25
  4. Step 4: Simplify right side
    90,610.12x = 4,050,089,941.50
  5. Step 5: Solve for x
    x = 4,050,089,941.50/90,610.12
  6. Step 6: Final answer
    x = 44,697.99

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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.