Home / 105,454.89-145,527.75-57,708.24

Finding the Fourth Proportional to 105,454.89, 145,527.75 and 57,708.24

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Solution

The fourth proportional to 105,454.89, 145,527.75 and 57,708.24 is: 79,637.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,454.89 : 145,527.75 = 57,708.24 : x
  2. Step 2: Convert to fraction form
    105,454.89/145,527.75 = 57,708.24/x
  3. Step 3: Cross multiply
    105,454.89x = 145,527.75 × 57,708.24
  4. Step 4: Simplify right side
    105,454.89x = 8,398,150,323.66
  5. Step 5: Solve for x
    x = 8,398,150,323.66/105,454.89
  6. Step 6: Final answer
    x = 79,637.37

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1.5x scale

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.