Home / 85,130.91-127,775.13-43,040.67

Finding the Fourth Proportional to 85,130.91, 127,775.13 and 43,040.67

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Solution

The fourth proportional to 85,130.91, 127,775.13 and 43,040.67 is: 64,600.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,130.91 : 127,775.13 = 43,040.67 : x
  2. Step 2: Convert to fraction form
    85,130.91/127,775.13 = 43,040.67/x
  3. Step 3: Cross multiply
    85,130.91x = 127,775.13 × 43,040.67
  4. Step 4: Simplify right side
    85,130.91x = 5,499,527,204.54
  5. Step 5: Solve for x
    x = 5,499,527,204.54/85,130.91
  6. Step 6: Final answer
    x = 64,600.83

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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.