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Finding the Fourth Proportional to 78,750.66, 108,678.44 and 44,301.36

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Solution

The fourth proportional to 78,750.66, 108,678.44 and 44,301.36 is: 61,137.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,750.66 : 108,678.44 = 44,301.36 : x
  2. Step 2: Convert to fraction form
    78,750.66/108,678.44 = 44,301.36/x
  3. Step 3: Cross multiply
    78,750.66x = 108,678.44 × 44,301.36
  4. Step 4: Simplify right side
    78,750.66x = 4,814,602,151.29
  5. Step 5: Solve for x
    x = 4,814,602,151.29/78,750.66
  6. Step 6: Final answer
    x = 61,137.30

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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.