Home / 105,454.57-145,527.30-57,707.93

Finding the Fourth Proportional to 105,454.57, 145,527.30 and 57,707.93

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Solution

The fourth proportional to 105,454.57, 145,527.30 and 57,707.93 is: 79,636.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,454.57 : 145,527.30 = 57,707.93 : x
  2. Step 2: Convert to fraction form
    105,454.57/145,527.30 = 57,707.93/x
  3. Step 3: Cross multiply
    105,454.57x = 145,527.30 × 57,707.93
  4. Step 4: Simplify right side
    105,454.57x = 8,398,079,241.49
  5. Step 5: Solve for x
    x = 8,398,079,241.49/105,454.57
  6. Step 6: Final answer
    x = 79,636.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.