Home / 85,759.47-128,638.26-33,132.06

Finding the Fourth Proportional to 85,759.47, 128,638.26 and 33,132.06

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Solution

The fourth proportional to 85,759.47, 128,638.26 and 33,132.06 is: 49,697.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,759.47 : 128,638.26 = 33,132.06 : x
  2. Step 2: Convert to fraction form
    85,759.47/128,638.26 = 33,132.06/x
  3. Step 3: Cross multiply
    85,759.47x = 128,638.26 × 33,132.06
  4. Step 4: Simplify right side
    85,759.47x = 4,262,050,548.62
  5. Step 5: Solve for x
    x = 4,262,050,548.62/85,759.47
  6. Step 6: Final answer
    x = 49,697.72

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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.