Home / 57,102.32-85,661.76-19,671.68

Finding the Fourth Proportional to 57,102.32, 85,661.76 and 19,671.68

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Solution

The fourth proportional to 57,102.32, 85,661.76 and 19,671.68 is: 29,510.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,102.32 : 85,661.76 = 19,671.68 : x
  2. Step 2: Convert to fraction form
    57,102.32/85,661.76 = 19,671.68/x
  3. Step 3: Cross multiply
    57,102.32x = 85,661.76 × 19,671.68
  4. Step 4: Simplify right side
    57,102.32x = 1,685,110,730.96
  5. Step 5: Solve for x
    x = 1,685,110,730.96/57,102.32
  6. Step 6: Final answer
    x = 29,510.37

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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.