Home / 85,534.56-128,265.16-29,380.32

Finding the Fourth Proportional to 85,534.56, 128,265.16 and 29,380.32

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Solution

The fourth proportional to 85,534.56, 128,265.16 and 29,380.32 is: 44,057.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,534.56 : 128,265.16 = 29,380.32 : x
  2. Step 2: Convert to fraction form
    85,534.56/128,265.16 = 29,380.32/x
  3. Step 3: Cross multiply
    85,534.56x = 128,265.16 × 29,380.32
  4. Step 4: Simplify right side
    85,534.56x = 3,768,471,445.65
  5. Step 5: Solve for x
    x = 3,768,471,445.65/85,534.56
  6. Step 6: Final answer
    x = 44,057.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.