Home / 76,420.10-114,468.55-48,325.65

Finding the Fourth Proportional to 76,420.10, 114,468.55 and 48,325.65

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Solution

The fourth proportional to 76,420.10, 114,468.55 and 48,325.65 is: 72,386.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,420.10 : 114,468.55 = 48,325.65 : x
  2. Step 2: Convert to fraction form
    76,420.10/114,468.55 = 48,325.65/x
  3. Step 3: Cross multiply
    76,420.10x = 114,468.55 × 48,325.65
  4. Step 4: Simplify right side
    76,420.10x = 5,531,766,841.68
  5. Step 5: Solve for x
    x = 5,531,766,841.68/76,420.10
  6. Step 6: Final answer
    x = 72,386.29

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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.