Home / 73,035.12-109,472.40-28,653.60

Finding the Fourth Proportional to 73,035.12, 109,472.40 and 28,653.60

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Solution

The fourth proportional to 73,035.12, 109,472.40 and 28,653.60 is: 42,948.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,035.12 : 109,472.40 = 28,653.60 : x
  2. Step 2: Convert to fraction form
    73,035.12/109,472.40 = 28,653.60/x
  3. Step 3: Cross multiply
    73,035.12x = 109,472.40 × 28,653.60
  4. Step 4: Simplify right side
    73,035.12x = 3,136,778,360.64
  5. Step 5: Solve for x
    x = 3,136,778,360.64/73,035.12
  6. Step 6: Final answer
    x = 42,948.90

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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.