Home / 54,010.10-81,015.15-42,734.90

Finding the Fourth Proportional to 54,010.10, 81,015.15 and 42,734.90

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Solution

The fourth proportional to 54,010.10, 81,015.15 and 42,734.90 is: 64,102.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,010.10 : 81,015.15 = 42,734.90 : x
  2. Step 2: Convert to fraction form
    54,010.10/81,015.15 = 42,734.90/x
  3. Step 3: Cross multiply
    54,010.10x = 81,015.15 × 42,734.90
  4. Step 4: Simplify right side
    54,010.10x = 3,462,174,333.74
  5. Step 5: Solve for x
    x = 3,462,174,333.74/54,010.10
  6. Step 6: Final answer
    x = 64,102.35

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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.