Home / 85,537.14-128,303.07-35,615.97

Finding the Fourth Proportional to 85,537.14, 128,303.07 and 35,615.97

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Solution

The fourth proportional to 85,537.14, 128,303.07 and 35,615.97 is: 53,422.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,537.14 : 128,303.07 = 35,615.97 : x
  2. Step 2: Convert to fraction form
    85,537.14/128,303.07 = 35,615.97/x
  3. Step 3: Cross multiply
    85,537.14x = 128,303.07 × 35,615.97
  4. Step 4: Simplify right side
    85,537.14x = 4,569,638,292.03
  5. Step 5: Solve for x
    x = 4,569,638,292.03/85,537.14
  6. Step 6: Final answer
    x = 53,422.86

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1.5x scale

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.