Home / 105,271.46-145,278.20-57,527.88

Finding the Fourth Proportional to 105,271.46, 145,278.20 and 57,527.88

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Solution

The fourth proportional to 105,271.46, 145,278.20 and 57,527.88 is: 79,390.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,271.46 : 145,278.20 = 57,527.88 : x
  2. Step 2: Convert to fraction form
    105,271.46/145,278.20 = 57,527.88/x
  3. Step 3: Cross multiply
    105,271.46x = 145,278.20 × 57,527.88
  4. Step 4: Simplify right side
    105,271.46x = 8,357,546,568.58
  5. Step 5: Solve for x
    x = 8,357,546,568.58/105,271.46
  6. Step 6: Final answer
    x = 79,390.43

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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.