Home / 85,500.45-128,287.56-46,049.67

Finding the Fourth Proportional to 85,500.45, 128,287.56 and 46,049.67

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Solution

The fourth proportional to 85,500.45, 128,287.56 and 46,049.67 is: 69,094.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,500.45 : 128,287.56 = 46,049.67 : x
  2. Step 2: Convert to fraction form
    85,500.45/128,287.56 = 46,049.67/x
  3. Step 3: Cross multiply
    85,500.45x = 128,287.56 × 46,049.67
  4. Step 4: Simplify right side
    85,500.45x = 5,907,599,803.11
  5. Step 5: Solve for x
    x = 5,907,599,803.11/85,500.45
  6. Step 6: Final answer
    x = 69,094.37

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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.