Home / 89,692.58-134,331.51-86,582.18

Finding the Fourth Proportional to 89,692.58, 134,331.51 and 86,582.18

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Solution

The fourth proportional to 89,692.58, 134,331.51 and 86,582.18 is: 129,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,692.58 : 134,331.51 = 86,582.18 : x
  2. Step 2: Convert to fraction form
    89,692.58/134,331.51 = 86,582.18/x
  3. Step 3: Cross multiply
    89,692.58x = 134,331.51 × 86,582.18
  4. Step 4: Simplify right side
    89,692.58x = 11,630,714,978.49
  5. Step 5: Solve for x
    x = 11,630,714,978.49/89,692.58
  6. Step 6: Final answer
    x = 129,673.10

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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.