Home / 85,315.02-127,917.74-35,429.54

Finding the Fourth Proportional to 85,315.02, 127,917.74 and 35,429.54

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Solution

The fourth proportional to 85,315.02, 127,917.74 and 35,429.54 is: 53,121.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,315.02 : 127,917.74 = 35,429.54 : x
  2. Step 2: Convert to fraction form
    85,315.02/127,917.74 = 35,429.54/x
  3. Step 3: Cross multiply
    85,315.02x = 127,917.74 × 35,429.54
  4. Step 4: Simplify right side
    85,315.02x = 4,532,066,686.04
  5. Step 5: Solve for x
    x = 4,532,066,686.04/85,315.02
  6. Step 6: Final answer
    x = 53,121.56

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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.