Home / 64,421.32-96,522.54-31,157

Finding the Fourth Proportional to 64,421.32, 96,522.54 and 31,157

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Solution

The fourth proportional to 64,421.32, 96,522.54 and 31,157 is: 46,682.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,421.32 : 96,522.54 = 31,157 : x
  2. Step 2: Convert to fraction form
    64,421.32/96,522.54 = 31,157/x
  3. Step 3: Cross multiply
    64,421.32x = 96,522.54 × 31,157
  4. Step 4: Simplify right side
    64,421.32x = 3,007,352,778.78
  5. Step 5: Solve for x
    x = 3,007,352,778.78/64,421.32
  6. Step 6: Final answer
    x = 46,682.57

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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.