Home / 56,030.20-83,930.10-38,519.80

Finding the Fourth Proportional to 56,030.20, 83,930.10 and 38,519.80

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Solution

The fourth proportional to 56,030.20, 83,930.10 and 38,519.80 is: 57,700.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,030.20 : 83,930.10 = 38,519.80 : x
  2. Step 2: Convert to fraction form
    56,030.20/83,930.10 = 38,519.80/x
  3. Step 3: Cross multiply
    56,030.20x = 83,930.10 × 38,519.80
  4. Step 4: Simplify right side
    56,030.20x = 3,232,970,665.98
  5. Step 5: Solve for x
    x = 3,232,970,665.98/56,030.20
  6. Step 6: Final answer
    x = 57,700.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.