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Finding the Fourth Proportional to 66,041.31, 91,127.37 and 37,741.53

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Solution

The fourth proportional to 66,041.31, 91,127.37 and 37,741.53 is: 52,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,041.31 : 91,127.37 = 37,741.53 : x
  2. Step 2: Convert to fraction form
    66,041.31/91,127.37 = 37,741.53/x
  3. Step 3: Cross multiply
    66,041.31x = 91,127.37 × 37,741.53
  4. Step 4: Simplify right side
    66,041.31x = 3,439,286,368.68
  5. Step 5: Solve for x
    x = 3,439,286,368.68/66,041.31
  6. Step 6: Final answer
    x = 52,077.80

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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.