Home / 78,389.64-108,180.45-44,399.10

Finding the Fourth Proportional to 78,389.64, 108,180.45 and 44,399.10

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Solution

The fourth proportional to 78,389.64, 108,180.45 and 44,399.10 is: 61,272.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,389.64 : 108,180.45 = 44,399.10 : x
  2. Step 2: Convert to fraction form
    78,389.64/108,180.45 = 44,399.10/x
  3. Step 3: Cross multiply
    78,389.64x = 108,180.45 × 44,399.10
  4. Step 4: Simplify right side
    78,389.64x = 4,803,114,617.60
  5. Step 5: Solve for x
    x = 4,803,114,617.60/78,389.64
  6. Step 6: Final answer
    x = 61,272.31

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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.