Home / 53,885.70-80,829.33-20,607.45

Finding the Fourth Proportional to 53,885.70, 80,829.33 and 20,607.45

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Solution

The fourth proportional to 53,885.70, 80,829.33 and 20,607.45 is: 30,911.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,885.70 : 80,829.33 = 20,607.45 : x
  2. Step 2: Convert to fraction form
    53,885.70/80,829.33 = 20,607.45/x
  3. Step 3: Cross multiply
    53,885.70x = 80,829.33 × 20,607.45
  4. Step 4: Simplify right side
    53,885.70x = 1,665,686,376.51
  5. Step 5: Solve for x
    x = 1,665,686,376.51/53,885.70
  6. Step 6: Final answer
    x = 30,911.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.