Home / 45,406.10-68,109.15-43,364.90

Finding the Fourth Proportional to 45,406.10, 68,109.15 and 43,364.90

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Solution

The fourth proportional to 45,406.10, 68,109.15 and 43,364.90 is: 65,047.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,406.10 : 68,109.15 = 43,364.90 : x
  2. Step 2: Convert to fraction form
    45,406.10/68,109.15 = 43,364.90/x
  3. Step 3: Cross multiply
    45,406.10x = 68,109.15 × 43,364.90
  4. Step 4: Simplify right side
    45,406.10x = 2,953,546,478.84
  5. Step 5: Solve for x
    x = 2,953,546,478.84/45,406.10
  6. Step 6: Final answer
    x = 65,047.35

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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.