Home / 65,840.10-90,858.70-35,624.76

Finding the Fourth Proportional to 65,840.10, 90,858.70 and 35,624.76

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Solution

The fourth proportional to 65,840.10, 90,858.70 and 35,624.76 is: 49,161.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,840.10 : 90,858.70 = 35,624.76 : x
  2. Step 2: Convert to fraction form
    65,840.10/90,858.70 = 35,624.76/x
  3. Step 3: Cross multiply
    65,840.10x = 90,858.70 × 35,624.76
  4. Step 4: Simplify right side
    65,840.10x = 3,236,819,546.21
  5. Step 5: Solve for x
    x = 3,236,819,546.21/65,840.10
  6. Step 6: Final answer
    x = 49,161.82

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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.