Home / 57,397.50-79,172.81-39,461.37

Finding the Fourth Proportional to 57,397.50, 79,172.81 and 39,461.37

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Solution

The fourth proportional to 57,397.50, 79,172.81 and 39,461.37 is: 54,432.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,397.50 : 79,172.81 = 39,461.37 : x
  2. Step 2: Convert to fraction form
    57,397.50/79,172.81 = 39,461.37/x
  3. Step 3: Cross multiply
    57,397.50x = 79,172.81 × 39,461.37
  4. Step 4: Simplify right side
    57,397.50x = 3,124,267,203.12
  5. Step 5: Solve for x
    x = 3,124,267,203.12/57,397.50
  6. Step 6: Final answer
    x = 54,432.11

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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.