Home / 78,262.37-107,999.15-42,451.19

Finding the Fourth Proportional to 78,262.37, 107,999.15 and 42,451.19

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Solution

The fourth proportional to 78,262.37, 107,999.15 and 42,451.19 is: 58,581.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,262.37 : 107,999.15 = 42,451.19 : x
  2. Step 2: Convert to fraction form
    78,262.37/107,999.15 = 42,451.19/x
  3. Step 3: Cross multiply
    78,262.37x = 107,999.15 × 42,451.19
  4. Step 4: Simplify right side
    78,262.37x = 4,584,691,684.24
  5. Step 5: Solve for x
    x = 4,584,691,684.24/78,262.37
  6. Step 6: Final answer
    x = 58,581.05

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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.