Home / 81,724.23-112,782.34-45,913.52

Finding the Fourth Proportional to 81,724.23, 112,782.34 and 45,913.52

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Solution

The fourth proportional to 81,724.23, 112,782.34 and 45,913.52 is: 63,362.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,724.23 : 112,782.34 = 45,913.52 : x
  2. Step 2: Convert to fraction form
    81,724.23/112,782.34 = 45,913.52/x
  3. Step 3: Cross multiply
    81,724.23x = 112,782.34 × 45,913.52
  4. Step 4: Simplify right side
    81,724.23x = 5,178,234,223.24
  5. Step 5: Solve for x
    x = 5,178,234,223.24/81,724.23
  6. Step 6: Final answer
    x = 63,362.29

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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.