Home / 76,346.64-105,359.46-57,192.48

Finding the Fourth Proportional to 76,346.64, 105,359.46 and 57,192.48

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Solution

The fourth proportional to 76,346.64, 105,359.46 and 57,192.48 is: 78,926.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,346.64 : 105,359.46 = 57,192.48 : x
  2. Step 2: Convert to fraction form
    76,346.64/105,359.46 = 57,192.48/x
  3. Step 3: Cross multiply
    76,346.64x = 105,359.46 × 57,192.48
  4. Step 4: Simplify right side
    76,346.64x = 6,025,768,808.86
  5. Step 5: Solve for x
    x = 6,025,768,808.86/76,346.64
  6. Step 6: Final answer
    x = 78,926.44

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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.