Home / 89,008.20-133,587.90-36,455.40

Finding the Fourth Proportional to 89,008.20, 133,587.90 and 36,455.40

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Solution

The fourth proportional to 89,008.20, 133,587.90 and 36,455.40 is: 54,714.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,008.20 : 133,587.90 = 36,455.40 : x
  2. Step 2: Convert to fraction form
    89,008.20/133,587.90 = 36,455.40/x
  3. Step 3: Cross multiply
    89,008.20x = 133,587.90 × 36,455.40
  4. Step 4: Simplify right side
    89,008.20x = 4,870,000,329.66
  5. Step 5: Solve for x
    x = 4,870,000,329.66/89,008.20
  6. Step 6: Final answer
    x = 54,714.06

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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.