Home / 105,454.51-145,527.23-57,707.87

Finding the Fourth Proportional to 105,454.51, 145,527.23 and 57,707.87

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Solution

The fourth proportional to 105,454.51, 145,527.23 and 57,707.87 is: 79,636.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,454.51 : 145,527.23 = 57,707.87 : x
  2. Step 2: Convert to fraction form
    105,454.51/145,527.23 = 57,707.87/x
  3. Step 3: Cross multiply
    105,454.51x = 145,527.23 × 57,707.87
  4. Step 4: Simplify right side
    105,454.51x = 8,398,066,470.30
  5. Step 5: Solve for x
    x = 8,398,066,470.30/105,454.51
  6. Step 6: Final answer
    x = 79,636.86

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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.