Home / 70,056.78-96,686.40-39,846.60

Finding the Fourth Proportional to 70,056.78, 96,686.40 and 39,846.60

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Solution

The fourth proportional to 70,056.78, 96,686.40 and 39,846.60 is: 54,992.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,056.78 : 96,686.40 = 39,846.60 : x
  2. Step 2: Convert to fraction form
    70,056.78/96,686.40 = 39,846.60/x
  3. Step 3: Cross multiply
    70,056.78x = 96,686.40 × 39,846.60
  4. Step 4: Simplify right side
    70,056.78x = 3,852,624,306.24
  5. Step 5: Solve for x
    x = 3,852,624,306.24/70,056.78
  6. Step 6: Final answer
    x = 54,992.88

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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.