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Finding the Fourth Proportional to 51,607.60, 71,218.19 and 28,637.19

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Solution

The fourth proportional to 51,607.60, 71,218.19 and 28,637.19 is: 39,519.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,607.60 : 71,218.19 = 28,637.19 : x
  2. Step 2: Convert to fraction form
    51,607.60/71,218.19 = 28,637.19/x
  3. Step 3: Cross multiply
    51,607.60x = 71,218.19 × 28,637.19
  4. Step 4: Simplify right side
    51,607.60x = 2,039,488,910.08
  5. Step 5: Solve for x
    x = 2,039,488,910.08/51,607.60
  6. Step 6: Final answer
    x = 39,519.16

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Double scale
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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.