Home / 45,430.56-68,040-43,854.12

Finding the Fourth Proportional to 45,430.56, 68,040 and 43,854.12

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Solution

The fourth proportional to 45,430.56, 68,040 and 43,854.12 is: 65,679.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,430.56 : 68,040 = 43,854.12 : x
  2. Step 2: Convert to fraction form
    45,430.56/68,040 = 43,854.12/x
  3. Step 3: Cross multiply
    45,430.56x = 68,040 × 43,854.12
  4. Step 4: Simplify right side
    45,430.56x = 2,983,834,324.80
  5. Step 5: Solve for x
    x = 2,983,834,324.80/45,430.56
  6. Step 6: Final answer
    x = 65,679.01

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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.