Home / 55,780.04-76,975.48-30,629.36

Finding the Fourth Proportional to 55,780.04, 76,975.48 and 30,629.36

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Solution

The fourth proportional to 55,780.04, 76,975.48 and 30,629.36 is: 42,267.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,780.04 : 76,975.48 = 30,629.36 : x
  2. Step 2: Convert to fraction form
    55,780.04/76,975.48 = 30,629.36/x
  3. Step 3: Cross multiply
    55,780.04x = 76,975.48 × 30,629.36
  4. Step 4: Simplify right side
    55,780.04x = 2,357,709,688.09
  5. Step 5: Solve for x
    x = 2,357,709,688.09/55,780.04
  6. Step 6: Final answer
    x = 42,267.98

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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.