Home / 58,958.12-81,320.52-57,005.31

Finding the Fourth Proportional to 58,958.12, 81,320.52 and 57,005.31

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Solution

The fourth proportional to 58,958.12, 81,320.52 and 57,005.31 is: 78,627.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,958.12 : 81,320.52 = 57,005.31 : x
  2. Step 2: Convert to fraction form
    58,958.12/81,320.52 = 57,005.31/x
  3. Step 3: Cross multiply
    58,958.12x = 81,320.52 × 57,005.31
  4. Step 4: Simplify right side
    58,958.12x = 4,635,700,933.24
  5. Step 5: Solve for x
    x = 4,635,700,933.24/58,958.12
  6. Step 6: Final answer
    x = 78,627.02

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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.