Home / 92,929.75-128,249.40-52,643.84

Finding the Fourth Proportional to 92,929.75, 128,249.40 and 52,643.84

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Solution

The fourth proportional to 92,929.75, 128,249.40 and 52,643.84 is: 72,652.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,929.75 : 128,249.40 = 52,643.84 : x
  2. Step 2: Convert to fraction form
    92,929.75/128,249.40 = 52,643.84/x
  3. Step 3: Cross multiply
    92,929.75x = 128,249.40 × 52,643.84
  4. Step 4: Simplify right side
    92,929.75x = 6,751,540,630.48
  5. Step 5: Solve for x
    x = 6,751,540,630.48/92,929.75
  6. Step 6: Final answer
    x = 72,652.09

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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.