Home / 64,639.46-96,890.01-31,313.78

Finding the Fourth Proportional to 64,639.46, 96,890.01 and 31,313.78

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Solution

The fourth proportional to 64,639.46, 96,890.01 and 31,313.78 is: 46,937.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,639.46 : 96,890.01 = 31,313.78 : x
  2. Step 2: Convert to fraction form
    64,639.46/96,890.01 = 31,313.78/x
  3. Step 3: Cross multiply
    64,639.46x = 96,890.01 × 31,313.78
  4. Step 4: Simplify right side
    64,639.46x = 3,033,992,457.34
  5. Step 5: Solve for x
    x = 3,033,992,457.34/64,639.46
  6. Step 6: Final answer
    x = 46,937.16

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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.