Home / 85,128.23-127,559.91-32,509.01

Finding the Fourth Proportional to 85,128.23, 127,559.91 and 32,509.01

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Solution

The fourth proportional to 85,128.23, 127,559.91 and 32,509.01 is: 48,712.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,128.23 : 127,559.91 = 32,509.01 : x
  2. Step 2: Convert to fraction form
    85,128.23/127,559.91 = 32,509.01/x
  3. Step 3: Cross multiply
    85,128.23x = 127,559.91 × 32,509.01
  4. Step 4: Simplify right side
    85,128.23x = 4,146,846,389.79
  5. Step 5: Solve for x
    x = 4,146,846,389.79/85,128.23
  6. Step 6: Final answer
    x = 48,712.94

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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.