Home / 49,885.81-68,836.37-28,378.28

Finding the Fourth Proportional to 49,885.81, 68,836.37 and 28,378.28

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Solution

The fourth proportional to 49,885.81, 68,836.37 and 28,378.28 is: 39,158.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,885.81 : 68,836.37 = 28,378.28 : x
  2. Step 2: Convert to fraction form
    49,885.81/68,836.37 = 28,378.28/x
  3. Step 3: Cross multiply
    49,885.81x = 68,836.37 × 28,378.28
  4. Step 4: Simplify right side
    49,885.81x = 1,953,457,812.24
  5. Step 5: Solve for x
    x = 1,953,457,812.24/49,885.81
  6. Step 6: Final answer
    x = 39,158.59

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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.