Home / 68,720.08-103,548.28-56,513.54

Finding the Fourth Proportional to 68,720.08, 103,548.28 and 56,513.54

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Solution

The fourth proportional to 68,720.08, 103,548.28 and 56,513.54 is: 85,155.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,720.08 : 103,548.28 = 56,513.54 : x
  2. Step 2: Convert to fraction form
    68,720.08/103,548.28 = 56,513.54/x
  3. Step 3: Cross multiply
    68,720.08x = 103,548.28 × 56,513.54
  4. Step 4: Simplify right side
    68,720.08x = 5,851,879,863.71
  5. Step 5: Solve for x
    x = 5,851,879,863.71/68,720.08
  6. Step 6: Final answer
    x = 85,155.31

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.