Home / 63,431.58-95,158.36-21,315.77

Finding the Fourth Proportional to 63,431.58, 95,158.36 and 21,315.77

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Solution

The fourth proportional to 63,431.58, 95,158.36 and 21,315.77 is: 31,977.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,431.58 : 95,158.36 = 21,315.77 : x
  2. Step 2: Convert to fraction form
    63,431.58/95,158.36 = 21,315.77/x
  3. Step 3: Cross multiply
    63,431.58x = 95,158.36 × 21,315.77
  4. Step 4: Simplify right side
    63,431.58x = 2,028,373,715.34
  5. Step 5: Solve for x
    x = 2,028,373,715.34/63,431.58
  6. Step 6: Final answer
    x = 31,977.35

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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.