Home / 52,852.50-72,929.77-28,972.89

Finding the Fourth Proportional to 52,852.50, 72,929.77 and 28,972.89

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Solution

The fourth proportional to 52,852.50, 72,929.77 and 28,972.89 is: 39,978.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,852.50 : 72,929.77 = 28,972.89 : x
  2. Step 2: Convert to fraction form
    52,852.50/72,929.77 = 28,972.89/x
  3. Step 3: Cross multiply
    52,852.50x = 72,929.77 × 28,972.89
  4. Step 4: Simplify right side
    52,852.50x = 2,112,986,131.50
  5. Step 5: Solve for x
    x = 2,112,986,131.50/52,852.50
  6. Step 6: Final answer
    x = 39,978.92

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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.