Home / 71,783.04-107,605.44-38,478.72

Finding the Fourth Proportional to 71,783.04, 107,605.44 and 38,478.72

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Solution

The fourth proportional to 71,783.04, 107,605.44 and 38,478.72 is: 57,681.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,783.04 : 107,605.44 = 38,478.72 : x
  2. Step 2: Convert to fraction form
    71,783.04/107,605.44 = 38,478.72/x
  3. Step 3: Cross multiply
    71,783.04x = 107,605.44 × 38,478.72
  4. Step 4: Simplify right side
    71,783.04x = 4,140,519,596.24
  5. Step 5: Solve for x
    x = 4,140,519,596.24/71,783.04
  6. Step 6: Final answer
    x = 57,681.03

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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.