Home / 77,003.30-106,262.34-43,010.78

Finding the Fourth Proportional to 77,003.30, 106,262.34 and 43,010.78

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Solution

The fourth proportional to 77,003.30, 106,262.34 and 43,010.78 is: 59,353.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,003.30 : 106,262.34 = 43,010.78 : x
  2. Step 2: Convert to fraction form
    77,003.30/106,262.34 = 43,010.78/x
  3. Step 3: Cross multiply
    77,003.30x = 106,262.34 × 43,010.78
  4. Step 4: Simplify right side
    77,003.30x = 4,570,425,596.71
  5. Step 5: Solve for x
    x = 4,570,425,596.71/77,003.30
  6. Step 6: Final answer
    x = 59,353.64

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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.