Home / 73,954.12-102,056.42-40,420.12

Finding the Fourth Proportional to 73,954.12, 102,056.42 and 40,420.12

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Solution

The fourth proportional to 73,954.12, 102,056.42 and 40,420.12 is: 55,779.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,954.12 : 102,056.42 = 40,420.12 : x
  2. Step 2: Convert to fraction form
    73,954.12/102,056.42 = 40,420.12/x
  3. Step 3: Cross multiply
    73,954.12x = 102,056.42 × 40,420.12
  4. Step 4: Simplify right side
    73,954.12x = 4,125,132,743.17
  5. Step 5: Solve for x
    x = 4,125,132,743.17/73,954.12
  6. Step 6: Final answer
    x = 55,779.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.