Home / 78,828.24-108,598.14-54,911.64

Finding the Fourth Proportional to 78,828.24, 108,598.14 and 54,911.64

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Solution

The fourth proportional to 78,828.24, 108,598.14 and 54,911.64 is: 75,649.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,828.24 : 108,598.14 = 54,911.64 : x
  2. Step 2: Convert to fraction form
    78,828.24/108,598.14 = 54,911.64/x
  3. Step 3: Cross multiply
    78,828.24x = 108,598.14 × 54,911.64
  4. Step 4: Simplify right side
    78,828.24x = 5,963,301,968.35
  5. Step 5: Solve for x
    x = 5,963,301,968.35/78,828.24
  6. Step 6: Final answer
    x = 75,649.31

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1.5x scale

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.