Home / 85,464.96-128,182.65-23,120.88

Finding the Fourth Proportional to 85,464.96, 128,182.65 and 23,120.88

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Solution

The fourth proportional to 85,464.96, 128,182.65 and 23,120.88 is: 34,677.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,464.96 : 128,182.65 = 23,120.88 : x
  2. Step 2: Convert to fraction form
    85,464.96/128,182.65 = 23,120.88/x
  3. Step 3: Cross multiply
    85,464.96x = 128,182.65 × 23,120.88
  4. Step 4: Simplify right side
    85,464.96x = 2,963,695,668.73
  5. Step 5: Solve for x
    x = 2,963,695,668.73/85,464.96
  6. Step 6: Final answer
    x = 34,677.32

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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.