Home / 105,632.20-145,771.60-57,885.44

Finding the Fourth Proportional to 105,632.20, 145,771.60 and 57,885.44

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Solution

The fourth proportional to 105,632.20, 145,771.60 and 57,885.44 is: 79,881.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,632.20 : 145,771.60 = 57,885.44 : x
  2. Step 2: Convert to fraction form
    105,632.20/145,771.60 = 57,885.44/x
  3. Step 3: Cross multiply
    105,632.20x = 145,771.60 × 57,885.44
  4. Step 4: Simplify right side
    105,632.20x = 8,438,052,440.47
  5. Step 5: Solve for x
    x = 8,438,052,440.47/105,632.20
  6. Step 6: Final answer
    x = 79,881.44

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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.