Home / 55,637.29-76,780.61-30,488.41

Finding the Fourth Proportional to 55,637.29, 76,780.61 and 30,488.41

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Solution

The fourth proportional to 55,637.29, 76,780.61 and 30,488.41 is: 42,074.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,637.29 : 76,780.61 = 30,488.41 : x
  2. Step 2: Convert to fraction form
    55,637.29/76,780.61 = 30,488.41/x
  3. Step 3: Cross multiply
    55,637.29x = 76,780.61 × 30,488.41
  4. Step 4: Simplify right side
    55,637.29x = 2,340,918,717.73
  5. Step 5: Solve for x
    x = 2,340,918,717.73/55,637.29
  6. Step 6: Final answer
    x = 42,074.64

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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.