Home / 70,455.07-105,716.72-31,007.04

Finding the Fourth Proportional to 70,455.07, 105,716.72 and 31,007.04

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Solution

The fourth proportional to 70,455.07, 105,716.72 and 31,007.04 is: 46,525.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,455.07 : 105,716.72 = 31,007.04 : x
  2. Step 2: Convert to fraction form
    70,455.07/105,716.72 = 31,007.04/x
  3. Step 3: Cross multiply
    70,455.07x = 105,716.72 × 31,007.04
  4. Step 4: Simplify right side
    70,455.07x = 3,277,962,565.71
  5. Step 5: Solve for x
    x = 3,277,962,565.71/70,455.07
  6. Step 6: Final answer
    x = 46,525.57

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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.