Home / 85,935.50-128,898.06-51,096.86

Finding the Fourth Proportional to 85,935.50, 128,898.06 and 51,096.86

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Solution

The fourth proportional to 85,935.50, 128,898.06 and 51,096.86 is: 76,642.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,935.50 : 128,898.06 = 51,096.86 : x
  2. Step 2: Convert to fraction form
    85,935.50/128,898.06 = 51,096.86/x
  3. Step 3: Cross multiply
    85,935.50x = 128,898.06 × 51,096.86
  4. Step 4: Simplify right side
    85,935.50x = 6,586,286,126.09
  5. Step 5: Solve for x
    x = 6,586,286,126.09/85,935.50
  6. Step 6: Final answer
    x = 76,642.20

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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.