Home / 78,583.40-117,903.62-48,562.65

Finding the Fourth Proportional to 78,583.40, 117,903.62 and 48,562.65

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Solution

The fourth proportional to 78,583.40, 117,903.62 and 48,562.65 is: 72,861.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,583.40 : 117,903.62 = 48,562.65 : x
  2. Step 2: Convert to fraction form
    78,583.40/117,903.62 = 48,562.65/x
  3. Step 3: Cross multiply
    78,583.40x = 117,903.62 × 48,562.65
  4. Step 4: Simplify right side
    78,583.40x = 5,725,712,353.20
  5. Step 5: Solve for x
    x = 5,725,712,353.20/78,583.40
  6. Step 6: Final answer
    x = 72,861.60

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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.