Home / 51,204.80-70,665.36-29,985.68

Finding the Fourth Proportional to 51,204.80, 70,665.36 and 29,985.68

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Solution

The fourth proportional to 51,204.80, 70,665.36 and 29,985.68 is: 41,381.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,204.80 : 70,665.36 = 29,985.68 : x
  2. Step 2: Convert to fraction form
    51,204.80/70,665.36 = 29,985.68/x
  3. Step 3: Cross multiply
    51,204.80x = 70,665.36 × 29,985.68
  4. Step 4: Simplify right side
    51,204.80x = 2,118,948,872.04
  5. Step 5: Solve for x
    x = 2,118,948,872.04/51,204.80
  6. Step 6: Final answer
    x = 41,381.84

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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.