Home / 71,985.20-107,977.80-48,365.60

Finding the Fourth Proportional to 71,985.20, 107,977.80 and 48,365.60

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Solution

The fourth proportional to 71,985.20, 107,977.80 and 48,365.60 is: 72,548.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,985.20 : 107,977.80 = 48,365.60 : x
  2. Step 2: Convert to fraction form
    71,985.20/107,977.80 = 48,365.60/x
  3. Step 3: Cross multiply
    71,985.20x = 107,977.80 × 48,365.60
  4. Step 4: Simplify right side
    71,985.20x = 5,222,411,083.68
  5. Step 5: Solve for x
    x = 5,222,411,083.68/71,985.20
  6. Step 6: Final answer
    x = 72,548.40

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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.