Home / 85,039.61-127,570.55-28,094.58

Finding the Fourth Proportional to 85,039.61, 127,570.55 and 28,094.58

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Solution

The fourth proportional to 85,039.61, 127,570.55 and 28,094.58 is: 42,145.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,039.61 : 127,570.55 = 28,094.58 : x
  2. Step 2: Convert to fraction form
    85,039.61/127,570.55 = 28,094.58/x
  3. Step 3: Cross multiply
    85,039.61x = 127,570.55 × 28,094.58
  4. Step 4: Simplify right side
    85,039.61x = 3,584,040,882.15
  5. Step 5: Solve for x
    x = 3,584,040,882.15/85,039.61
  6. Step 6: Final answer
    x = 42,145.55

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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.