Home / 66,905.49-92,281.38-43,009.33

Finding the Fourth Proportional to 66,905.49, 92,281.38 and 43,009.33

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Solution

The fourth proportional to 66,905.49, 92,281.38 and 43,009.33 is: 59,321.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,905.49 : 92,281.38 = 43,009.33 : x
  2. Step 2: Convert to fraction form
    66,905.49/92,281.38 = 43,009.33/x
  3. Step 3: Cross multiply
    66,905.49x = 92,281.38 × 43,009.33
  4. Step 4: Simplify right side
    66,905.49x = 3,968,960,106.31
  5. Step 5: Solve for x
    x = 3,968,960,106.31/66,905.49
  6. Step 6: Final answer
    x = 59,321.89

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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.