Home / 55,784.89-76,972.31-33,130.98

Finding the Fourth Proportional to 55,784.89, 76,972.31 and 33,130.98

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Solution

The fourth proportional to 55,784.89, 76,972.31 and 33,130.98 is: 45,714.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,784.89 : 76,972.31 = 33,130.98 : x
  2. Step 2: Convert to fraction form
    55,784.89/76,972.31 = 33,130.98/x
  3. Step 3: Cross multiply
    55,784.89x = 76,972.31 × 33,130.98
  4. Step 4: Simplify right side
    55,784.89x = 2,550,168,145.99
  5. Step 5: Solve for x
    x = 2,550,168,145.99/55,784.89
  6. Step 6: Final answer
    x = 45,714.32

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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.