Home / 85,627.44-128,427.12-23,302.80

Finding the Fourth Proportional to 85,627.44, 128,427.12 and 23,302.80

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Solution

The fourth proportional to 85,627.44, 128,427.12 and 23,302.80 is: 34,950.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,627.44 : 128,427.12 = 23,302.80 : x
  2. Step 2: Convert to fraction form
    85,627.44/128,427.12 = 23,302.80/x
  3. Step 3: Cross multiply
    85,627.44x = 128,427.12 × 23,302.80
  4. Step 4: Simplify right side
    85,627.44x = 2,992,711,491.94
  5. Step 5: Solve for x
    x = 2,992,711,491.94/85,627.44
  6. Step 6: Final answer
    x = 34,950.38

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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.