Home / 65,904.20-90,947.35-35,688.83

Finding the Fourth Proportional to 65,904.20, 90,947.35 and 35,688.83

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Solution

The fourth proportional to 65,904.20, 90,947.35 and 35,688.83 is: 49,250.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,904.20 : 90,947.35 = 35,688.83 : x
  2. Step 2: Convert to fraction form
    65,904.20/90,947.35 = 35,688.83/x
  3. Step 3: Cross multiply
    65,904.20x = 90,947.35 × 35,688.83
  4. Step 4: Simplify right side
    65,904.20x = 3,245,804,651.25
  5. Step 5: Solve for x
    x = 3,245,804,651.25/65,904.20
  6. Step 6: Final answer
    x = 49,250.34

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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.