Home / 93,285.12-128,729.52-50,842.64

Finding the Fourth Proportional to 93,285.12, 128,729.52 and 50,842.64

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Solution

The fourth proportional to 93,285.12, 128,729.52 and 50,842.64 is: 70,160.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,285.12 : 128,729.52 = 50,842.64 : x
  2. Step 2: Convert to fraction form
    93,285.12/128,729.52 = 50,842.64/x
  3. Step 3: Cross multiply
    93,285.12x = 128,729.52 × 50,842.64
  4. Step 4: Simplify right side
    93,285.12x = 6,544,948,642.73
  5. Step 5: Solve for x
    x = 6,544,948,642.73/93,285.12
  6. Step 6: Final answer
    x = 70,160.69

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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.