Home / 64,842.69-89,454.66-40,628.76

Finding the Fourth Proportional to 64,842.69, 89,454.66 and 40,628.76

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Solution

The fourth proportional to 64,842.69, 89,454.66 and 40,628.76 is: 56,049.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,842.69 : 89,454.66 = 40,628.76 : x
  2. Step 2: Convert to fraction form
    64,842.69/89,454.66 = 40,628.76/x
  3. Step 3: Cross multiply
    64,842.69x = 89,454.66 × 40,628.76
  4. Step 4: Simplify right side
    64,842.69x = 3,634,431,912.02
  5. Step 5: Solve for x
    x = 3,634,431,912.02/64,842.69
  6. Step 6: Final answer
    x = 56,049.99

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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.