Home / 56,359.24-84,539.82-21,315.40

Finding the Fourth Proportional to 56,359.24, 84,539.82 and 21,315.40

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Solution

The fourth proportional to 56,359.24, 84,539.82 and 21,315.40 is: 31,973.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,359.24 : 84,539.82 = 21,315.40 : x
  2. Step 2: Convert to fraction form
    56,359.24/84,539.82 = 21,315.40/x
  3. Step 3: Cross multiply
    56,359.24x = 84,539.82 × 21,315.40
  4. Step 4: Simplify right side
    56,359.24x = 1,802,000,079.23
  5. Step 5: Solve for x
    x = 1,802,000,079.23/56,359.24
  6. Step 6: Final answer
    x = 31,973.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.