Home / 78,336.89-108,104.63-42,526.64

Finding the Fourth Proportional to 78,336.89, 108,104.63 and 42,526.64

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Solution

The fourth proportional to 78,336.89, 108,104.63 and 42,526.64 is: 58,686.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,336.89 : 108,104.63 = 42,526.64 : x
  2. Step 2: Convert to fraction form
    78,336.89/108,104.63 = 42,526.64/x
  3. Step 3: Cross multiply
    78,336.89x = 108,104.63 × 42,526.64
  4. Step 4: Simplify right side
    78,336.89x = 4,597,325,929.19
  5. Step 5: Solve for x
    x = 4,597,325,929.19/78,336.89
  6. Step 6: Final answer
    x = 58,686.61

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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.