Home / 74,387.67-111,566.93-21,783.03

Finding the Fourth Proportional to 74,387.67, 111,566.93 and 21,783.03

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Solution

The fourth proportional to 74,387.67, 111,566.93 and 21,783.03 is: 32,670.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,387.67 : 111,566.93 = 21,783.03 : x
  2. Step 2: Convert to fraction form
    74,387.67/111,566.93 = 21,783.03/x
  3. Step 3: Cross multiply
    74,387.67x = 111,566.93 × 21,783.03
  4. Step 4: Simplify right side
    74,387.67x = 2,430,265,674.28
  5. Step 5: Solve for x
    x = 2,430,265,674.28/74,387.67
  6. Step 6: Final answer
    x = 32,670.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.