Home / 90,836.55-136,200.15-46,549.80

Finding the Fourth Proportional to 90,836.55, 136,200.15 and 46,549.80

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Solution

The fourth proportional to 90,836.55, 136,200.15 and 46,549.80 is: 69,796.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,836.55 : 136,200.15 = 46,549.80 : x
  2. Step 2: Convert to fraction form
    90,836.55/136,200.15 = 46,549.80/x
  3. Step 3: Cross multiply
    90,836.55x = 136,200.15 × 46,549.80
  4. Step 4: Simplify right side
    90,836.55x = 6,340,089,742.47
  5. Step 5: Solve for x
    x = 6,340,089,742.47/90,836.55
  6. Step 6: Final answer
    x = 69,796.68

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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.