Home / 53,845.40-80,681.70-45,032.60

Finding the Fourth Proportional to 53,845.40, 80,681.70 and 45,032.60

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Solution

The fourth proportional to 53,845.40, 80,681.70 and 45,032.60 is: 67,476.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,845.40 : 80,681.70 = 45,032.60 : x
  2. Step 2: Convert to fraction form
    53,845.40/80,681.70 = 45,032.60/x
  3. Step 3: Cross multiply
    53,845.40x = 80,681.70 × 45,032.60
  4. Step 4: Simplify right side
    53,845.40x = 3,633,306,723.42
  5. Step 5: Solve for x
    x = 3,633,306,723.42/53,845.40
  6. Step 6: Final answer
    x = 67,476.64

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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.