Home / 45,051.78-67,410.27-28,333.74

Finding the Fourth Proportional to 45,051.78, 67,410.27 and 28,333.74

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Solution

The fourth proportional to 45,051.78, 67,410.27 and 28,333.74 is: 42,395.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,051.78 : 67,410.27 = 28,333.74 : x
  2. Step 2: Convert to fraction form
    45,051.78/67,410.27 = 28,333.74/x
  3. Step 3: Cross multiply
    45,051.78x = 67,410.27 × 28,333.74
  4. Step 4: Simplify right side
    45,051.78x = 1,909,985,063.51
  5. Step 5: Solve for x
    x = 1,909,985,063.51/45,051.78
  6. Step 6: Final answer
    x = 42,395.33

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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.