Home / 76,346.82-105,358.44-42,360.48

Finding the Fourth Proportional to 76,346.82, 105,358.44 and 42,360.48

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Solution

The fourth proportional to 76,346.82, 105,358.44 and 42,360.48 is: 58,457.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,346.82 : 105,358.44 = 42,360.48 : x
  2. Step 2: Convert to fraction form
    76,346.82/105,358.44 = 42,360.48/x
  3. Step 3: Cross multiply
    76,346.82x = 105,358.44 × 42,360.48
  4. Step 4: Simplify right side
    76,346.82x = 4,463,034,090.45
  5. Step 5: Solve for x
    x = 4,463,034,090.45/76,346.82
  6. Step 6: Final answer
    x = 58,457.37

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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.