Home / 76,331.37-105,349.91-42,350.79

Finding the Fourth Proportional to 76,331.37, 105,349.91 and 42,350.79

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Solution

The fourth proportional to 76,331.37, 105,349.91 and 42,350.79 is: 58,451.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,331.37 : 105,349.91 = 42,350.79 : x
  2. Step 2: Convert to fraction form
    76,331.37/105,349.91 = 42,350.79/x
  3. Step 3: Cross multiply
    76,331.37x = 105,349.91 × 42,350.79
  4. Step 4: Simplify right side
    76,331.37x = 4,461,652,098.24
  5. Step 5: Solve for x
    x = 4,461,652,098.24/76,331.37
  6. Step 6: Final answer
    x = 58,451.09

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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.