Home / 77,997.60-107,607.83-51,155.01

Finding the Fourth Proportional to 77,997.60, 107,607.83 and 51,155.01

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Solution

The fourth proportional to 77,997.60, 107,607.83 and 51,155.01 is: 70,574.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,997.60 : 107,607.83 = 51,155.01 : x
  2. Step 2: Convert to fraction form
    77,997.60/107,607.83 = 51,155.01/x
  3. Step 3: Cross multiply
    77,997.60x = 107,607.83 × 51,155.01
  4. Step 4: Simplify right side
    77,997.60x = 5,504,679,363.95
  5. Step 5: Solve for x
    x = 5,504,679,363.95/77,997.60
  6. Step 6: Final answer
    x = 70,574.98

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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.