Home / 74,973.20-112,387.80-43,350.80

Finding the Fourth Proportional to 74,973.20, 112,387.80 and 43,350.80

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Solution

The fourth proportional to 74,973.20, 112,387.80 and 43,350.80 is: 64,984.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,973.20 : 112,387.80 = 43,350.80 : x
  2. Step 2: Convert to fraction form
    74,973.20/112,387.80 = 43,350.80/x
  3. Step 3: Cross multiply
    74,973.20x = 112,387.80 × 43,350.80
  4. Step 4: Simplify right side
    74,973.20x = 4,872,101,040.24
  5. Step 5: Solve for x
    x = 4,872,101,040.24/74,973.20
  6. Step 6: Final answer
    x = 64,984.57

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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.