Home / 91,003.20-125,661.96-57,068.76

Finding the Fourth Proportional to 91,003.20, 125,661.96 and 57,068.76

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Solution

The fourth proportional to 91,003.20, 125,661.96 and 57,068.76 is: 78,803.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,003.20 : 125,661.96 = 57,068.76 : x
  2. Step 2: Convert to fraction form
    91,003.20/125,661.96 = 57,068.76/x
  3. Step 3: Cross multiply
    91,003.20x = 125,661.96 × 57,068.76
  4. Step 4: Simplify right side
    91,003.20x = 7,171,372,236.37
  5. Step 5: Solve for x
    x = 7,171,372,236.37/91,003.20
  6. Step 6: Final answer
    x = 78,803.52

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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.