Home / 90,928.36-125,477.22-65,734.12

Finding the Fourth Proportional to 90,928.36, 125,477.22 and 65,734.12

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Solution

The fourth proportional to 90,928.36, 125,477.22 and 65,734.12 is: 90,710.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,928.36 : 125,477.22 = 65,734.12 : x
  2. Step 2: Convert to fraction form
    90,928.36/125,477.22 = 65,734.12/x
  3. Step 3: Cross multiply
    90,928.36x = 125,477.22 × 65,734.12
  4. Step 4: Simplify right side
    90,928.36x = 8,248,134,636.75
  5. Step 5: Solve for x
    x = 8,248,134,636.75/90,928.36
  6. Step 6: Final answer
    x = 90,710.25

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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.