Home / 64,648.45-89,227.15-40,460.66

Finding the Fourth Proportional to 64,648.45, 89,227.15 and 40,460.66

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Solution

The fourth proportional to 64,648.45, 89,227.15 and 40,460.66 is: 55,843.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,648.45 : 89,227.15 = 40,460.66 : x
  2. Step 2: Convert to fraction form
    64,648.45/89,227.15 = 40,460.66/x
  3. Step 3: Cross multiply
    64,648.45x = 89,227.15 × 40,460.66
  4. Step 4: Simplify right side
    64,648.45x = 3,610,189,500.84
  5. Step 5: Solve for x
    x = 3,610,189,500.84/64,648.45
  6. Step 6: Final answer
    x = 55,843.40

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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.