Home / 78,862.60-108,828.66-43,051.24

Finding the Fourth Proportional to 78,862.60, 108,828.66 and 43,051.24

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Solution

The fourth proportional to 78,862.60, 108,828.66 and 43,051.24 is: 59,409.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,862.60 : 108,828.66 = 43,051.24 : x
  2. Step 2: Convert to fraction form
    78,862.60/108,828.66 = 43,051.24/x
  3. Step 3: Cross multiply
    78,862.60x = 108,828.66 × 43,051.24
  4. Step 4: Simplify right side
    78,862.60x = 4,685,208,760.54
  5. Step 5: Solve for x
    x = 4,685,208,760.54/78,862.60
  6. Step 6: Final answer
    x = 59,409.77

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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.