Home / 85,503.93-128,258.10-40,514.73

Finding the Fourth Proportional to 85,503.93, 128,258.10 and 40,514.73

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Solution

The fourth proportional to 85,503.93, 128,258.10 and 40,514.73 is: 60,773.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,503.93 : 128,258.10 = 40,514.73 : x
  2. Step 2: Convert to fraction form
    85,503.93/128,258.10 = 40,514.73/x
  3. Step 3: Cross multiply
    85,503.93x = 128,258.10 × 40,514.73
  4. Step 4: Simplify right side
    85,503.93x = 5,196,342,291.81
  5. Step 5: Solve for x
    x = 5,196,342,291.81/85,503.93
  6. Step 6: Final answer
    x = 60,773.14

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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.