Home / 76,660.28-105,839.79-52,501.76

Finding the Fourth Proportional to 76,660.28, 105,839.79 and 52,501.76

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Solution

The fourth proportional to 76,660.28, 105,839.79 and 52,501.76 is: 72,485.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,660.28 : 105,839.79 = 52,501.76 : x
  2. Step 2: Convert to fraction form
    76,660.28/105,839.79 = 52,501.76/x
  3. Step 3: Cross multiply
    76,660.28x = 105,839.79 × 52,501.76
  4. Step 4: Simplify right side
    76,660.28x = 5,556,775,253.03
  5. Step 5: Solve for x
    x = 5,556,775,253.03/76,660.28
  6. Step 6: Final answer
    x = 72,485.72

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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.