Home / 105,454.68-145,527.24-57,708.01

Finding the Fourth Proportional to 105,454.68, 145,527.24 and 57,708.01

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Solution

The fourth proportional to 105,454.68, 145,527.24 and 57,708.01 is: 79,636.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,454.68 : 145,527.24 = 57,708.01 : x
  2. Step 2: Convert to fraction form
    105,454.68/145,527.24 = 57,708.01/x
  3. Step 3: Cross multiply
    105,454.68x = 145,527.24 × 57,708.01
  4. Step 4: Simplify right side
    105,454.68x = 8,398,087,421.19
  5. Step 5: Solve for x
    x = 8,398,087,421.19/105,454.68
  6. Step 6: Final answer
    x = 79,636.93

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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.