Home / 55,730.79-76,909.77-31,859.69

Finding the Fourth Proportional to 55,730.79, 76,909.77 and 31,859.69

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Solution

The fourth proportional to 55,730.79, 76,909.77 and 31,859.69 is: 43,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,730.79 : 76,909.77 = 31,859.69 : x
  2. Step 2: Convert to fraction form
    55,730.79/76,909.77 = 31,859.69/x
  3. Step 3: Cross multiply
    55,730.79x = 76,909.77 × 31,859.69
  4. Step 4: Simplify right side
    55,730.79x = 2,450,321,045.62
  5. Step 5: Solve for x
    x = 2,450,321,045.62/55,730.79
  6. Step 6: Final answer
    x = 43,967.10

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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.