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Finding the Fourth Proportional to 53,954.90, 80,955.70 and 28,965.79

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Solution

The fourth proportional to 53,954.90, 80,955.70 and 28,965.79 is: 43,461.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,954.90 : 80,955.70 = 28,965.79 : x
  2. Step 2: Convert to fraction form
    53,954.90/80,955.70 = 28,965.79/x
  3. Step 3: Cross multiply
    53,954.90x = 80,955.70 × 28,965.79
  4. Step 4: Simplify right side
    53,954.90x = 2,344,945,805.50
  5. Step 5: Solve for x
    x = 2,344,945,805.50/53,954.90
  6. Step 6: Final answer
    x = 43,461.22

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1.5x scale

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.