Home / 57,428.78-79,247.81-34,780.35

Finding the Fourth Proportional to 57,428.78, 79,247.81 and 34,780.35

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Solution

The fourth proportional to 57,428.78, 79,247.81 and 34,780.35 is: 47,994.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,428.78 : 79,247.81 = 34,780.35 : x
  2. Step 2: Convert to fraction form
    57,428.78/79,247.81 = 34,780.35/x
  3. Step 3: Cross multiply
    57,428.78x = 79,247.81 × 34,780.35
  4. Step 4: Simplify right side
    57,428.78x = 2,756,266,655.48
  5. Step 5: Solve for x
    x = 2,756,266,655.48/57,428.78
  6. Step 6: Final answer
    x = 47,994.52

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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.