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Finding the Fourth Proportional to 51,461.77, 71,020.37 and 28,800.29

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Solution

The fourth proportional to 51,461.77, 71,020.37 and 28,800.29 is: 39,746.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,461.77 : 71,020.37 = 28,800.29 : x
  2. Step 2: Convert to fraction form
    51,461.77/71,020.37 = 28,800.29/x
  3. Step 3: Cross multiply
    51,461.77x = 71,020.37 × 28,800.29
  4. Step 4: Simplify right side
    51,461.77x = 2,045,407,472.62
  5. Step 5: Solve for x
    x = 2,045,407,472.62/51,461.77
  6. Step 6: Final answer
    x = 39,746.16

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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.