Home / 66,349.35-91,556.06-39,487.55

Finding the Fourth Proportional to 66,349.35, 91,556.06 and 39,487.55

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Solution

The fourth proportional to 66,349.35, 91,556.06 and 39,487.55 is: 54,489.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,349.35 : 91,556.06 = 39,487.55 : x
  2. Step 2: Convert to fraction form
    66,349.35/91,556.06 = 39,487.55/x
  3. Step 3: Cross multiply
    66,349.35x = 91,556.06 × 39,487.55
  4. Step 4: Simplify right side
    66,349.35x = 3,615,323,841.83
  5. Step 5: Solve for x
    x = 3,615,323,841.83/66,349.35
  6. Step 6: Final answer
    x = 54,489.21

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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.