Home / 85,563.36-118,078.16-47,320.88

Finding the Fourth Proportional to 85,563.36, 118,078.16 and 47,320.88

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Solution

The fourth proportional to 85,563.36, 118,078.16 and 47,320.88 is: 65,303.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,563.36 : 118,078.16 = 47,320.88 : x
  2. Step 2: Convert to fraction form
    85,563.36/118,078.16 = 47,320.88/x
  3. Step 3: Cross multiply
    85,563.36x = 118,078.16 × 47,320.88
  4. Step 4: Simplify right side
    85,563.36x = 5,587,562,439.98
  5. Step 5: Solve for x
    x = 5,587,562,439.98/85,563.36
  6. Step 6: Final answer
    x = 65,303.21

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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.