Home / 68,746.08-103,039.20-56,287.20

Finding the Fourth Proportional to 68,746.08, 103,039.20 and 56,287.20

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Solution

The fourth proportional to 68,746.08, 103,039.20 and 56,287.20 is: 84,365.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,746.08 : 103,039.20 = 56,287.20 : x
  2. Step 2: Convert to fraction form
    68,746.08/103,039.20 = 56,287.20/x
  3. Step 3: Cross multiply
    68,746.08x = 103,039.20 × 56,287.20
  4. Step 4: Simplify right side
    68,746.08x = 5,799,788,058.24
  5. Step 5: Solve for x
    x = 5,799,788,058.24/68,746.08
  6. Step 6: Final answer
    x = 84,365.36

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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.