Home / 78,032.58-107,684.94-42,222.61

Finding the Fourth Proportional to 78,032.58, 107,684.94 and 42,222.61

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Solution

The fourth proportional to 78,032.58, 107,684.94 and 42,222.61 is: 58,267.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,032.58 : 107,684.94 = 42,222.61 : x
  2. Step 2: Convert to fraction form
    78,032.58/107,684.94 = 42,222.61/x
  3. Step 3: Cross multiply
    78,032.58x = 107,684.94 × 42,222.61
  4. Step 4: Simplify right side
    78,032.58x = 4,546,739,224.49
  5. Step 5: Solve for x
    x = 4,546,739,224.49/78,032.58
  6. Step 6: Final answer
    x = 58,267.19

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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.