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Finding the Fourth Proportional to 66,291.48, 91,459.80 and 37,608.03

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Solution

The fourth proportional to 66,291.48, 91,459.80 and 37,608.03 is: 51,886.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,291.48 : 91,459.80 = 37,608.03 : x
  2. Step 2: Convert to fraction form
    66,291.48/91,459.80 = 37,608.03/x
  3. Step 3: Cross multiply
    66,291.48x = 91,459.80 × 37,608.03
  4. Step 4: Simplify right side
    66,291.48x = 3,439,622,902.19
  5. Step 5: Solve for x
    x = 3,439,622,902.19/66,291.48
  6. Step 6: Final answer
    x = 51,886.35

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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.