Home / 52,782.48-72,840.66-28,911.42

Finding the Fourth Proportional to 52,782.48, 72,840.66 and 28,911.42

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Solution

The fourth proportional to 52,782.48, 72,840.66 and 28,911.42 is: 39,898.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,782.48 : 72,840.66 = 28,911.42 : x
  2. Step 2: Convert to fraction form
    52,782.48/72,840.66 = 28,911.42/x
  3. Step 3: Cross multiply
    52,782.48x = 72,840.66 × 28,911.42
  4. Step 4: Simplify right side
    52,782.48x = 2,105,926,914.34
  5. Step 5: Solve for x
    x = 2,105,926,914.34/52,782.48
  6. Step 6: Final answer
    x = 39,898.22

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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.