Home / 58,731-81,116.07-38,677.50

Finding the Fourth Proportional to 58,731, 81,116.07 and 38,677.50

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Solution

The fourth proportional to 58,731, 81,116.07 and 38,677.50 is: 53,419.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,731 : 81,116.07 = 38,677.50 : x
  2. Step 2: Convert to fraction form
    58,731/81,116.07 = 38,677.50/x
  3. Step 3: Cross multiply
    58,731x = 81,116.07 × 38,677.50
  4. Step 4: Simplify right side
    58,731x = 3,137,366,797.43
  5. Step 5: Solve for x
    x = 3,137,366,797.43/58,731
  6. Step 6: Final answer
    x = 53,419.26

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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.