Home / 66,401.02-91,632.48-36,187.60

Finding the Fourth Proportional to 66,401.02, 91,632.48 and 36,187.60

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Solution

The fourth proportional to 66,401.02, 91,632.48 and 36,187.60 is: 49,938.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,401.02 : 91,632.48 = 36,187.60 : x
  2. Step 2: Convert to fraction form
    66,401.02/91,632.48 = 36,187.60/x
  3. Step 3: Cross multiply
    66,401.02x = 91,632.48 × 36,187.60
  4. Step 4: Simplify right side
    66,401.02x = 3,315,959,533.25
  5. Step 5: Solve for x
    x = 3,315,959,533.25/66,401.02
  6. Step 6: Final answer
    x = 49,938.38

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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.