Home / 80,502.08-111,090.72-48,254.91

Finding the Fourth Proportional to 80,502.08, 111,090.72 and 48,254.91

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Solution

The fourth proportional to 80,502.08, 111,090.72 and 48,254.91 is: 66,590.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,502.08 : 111,090.72 = 48,254.91 : x
  2. Step 2: Convert to fraction form
    80,502.08/111,090.72 = 48,254.91/x
  3. Step 3: Cross multiply
    80,502.08x = 111,090.72 × 48,254.91
  4. Step 4: Simplify right side
    80,502.08x = 5,360,672,989.98
  5. Step 5: Solve for x
    x = 5,360,672,989.98/80,502.08
  6. Step 6: Final answer
    x = 66,590.49

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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.