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Finding the Fourth Proportional to 51,463.40, 71,020.76 and 28,802.21

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Solution

The fourth proportional to 51,463.40, 71,020.76 and 28,802.21 is: 39,747.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,463.40 : 71,020.76 = 28,802.21 : x
  2. Step 2: Convert to fraction form
    51,463.40/71,020.76 = 28,802.21/x
  3. Step 3: Cross multiply
    51,463.40x = 71,020.76 × 28,802.21
  4. Step 4: Simplify right side
    51,463.40x = 2,045,554,344.76
  5. Step 5: Solve for x
    x = 2,045,554,344.76/51,463.40
  6. Step 6: Final answer
    x = 39,747.75

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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.