Home / 51,651.49-71,276.05-28,988.36

Finding the Fourth Proportional to 51,651.49, 71,276.05 and 28,988.36

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Solution

The fourth proportional to 51,651.49, 71,276.05 and 28,988.36 is: 40,002.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,651.49 : 71,276.05 = 28,988.36 : x
  2. Step 2: Convert to fraction form
    51,651.49/71,276.05 = 28,988.36/x
  3. Step 3: Cross multiply
    51,651.49x = 71,276.05 × 28,988.36
  4. Step 4: Simplify right side
    51,651.49x = 2,066,175,796.78
  5. Step 5: Solve for x
    x = 2,066,175,796.78/51,651.49
  6. Step 6: Final answer
    x = 40,002.25

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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.