Home / 76,459.86-105,513.75-42,468.66

Finding the Fourth Proportional to 76,459.86, 105,513.75 and 42,468.66

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Solution

The fourth proportional to 76,459.86, 105,513.75 and 42,468.66 is: 58,606.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,459.86 : 105,513.75 = 42,468.66 : x
  2. Step 2: Convert to fraction form
    76,459.86/105,513.75 = 42,468.66/x
  3. Step 3: Cross multiply
    76,459.86x = 105,513.75 × 42,468.66
  4. Step 4: Simplify right side
    76,459.86x = 4,481,027,574.08
  5. Step 5: Solve for x
    x = 4,481,027,574.08/76,459.86
  6. Step 6: Final answer
    x = 58,606.27

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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.