Home / 88,643.32-122,316.80-54,205.36

Finding the Fourth Proportional to 88,643.32, 122,316.80 and 54,205.36

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Solution

The fourth proportional to 88,643.32, 122,316.80 and 54,205.36 is: 74,796.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,643.32 : 122,316.80 = 54,205.36 : x
  2. Step 2: Convert to fraction form
    88,643.32/122,316.80 = 54,205.36/x
  3. Step 3: Cross multiply
    88,643.32x = 122,316.80 × 54,205.36
  4. Step 4: Simplify right side
    88,643.32x = 6,630,226,178.05
  5. Step 5: Solve for x
    x = 6,630,226,178.05/88,643.32
  6. Step 6: Final answer
    x = 74,796.68

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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.