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Finding the Fourth Proportional to 66,347.66, 91,556.06 and 37,659.72

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Solution

The fourth proportional to 66,347.66, 91,556.06 and 37,659.72 is: 51,968.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,347.66 : 91,556.06 = 37,659.72 : x
  2. Step 2: Convert to fraction form
    66,347.66/91,556.06 = 37,659.72/x
  3. Step 3: Cross multiply
    66,347.66x = 91,556.06 × 37,659.72
  4. Step 4: Simplify right side
    66,347.66x = 3,447,975,583.90
  5. Step 5: Solve for x
    x = 3,447,975,583.90/66,347.66
  6. Step 6: Final answer
    x = 51,968.31

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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.