Home / 64,943.28-89,672.40-50,836.32

Finding the Fourth Proportional to 64,943.28, 89,672.40 and 50,836.32

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Solution

The fourth proportional to 64,943.28, 89,672.40 and 50,836.32 is: 70,193.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,943.28 : 89,672.40 = 50,836.32 : x
  2. Step 2: Convert to fraction form
    64,943.28/89,672.40 = 50,836.32/x
  3. Step 3: Cross multiply
    64,943.28x = 89,672.40 × 50,836.32
  4. Step 4: Simplify right side
    64,943.28x = 4,558,614,821.57
  5. Step 5: Solve for x
    x = 4,558,614,821.57/64,943.28
  6. Step 6: Final answer
    x = 70,193.79

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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.