Home / 45,600.76-68,422.80-31,582.36

Finding the Fourth Proportional to 45,600.76, 68,422.80 and 31,582.36

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Solution

The fourth proportional to 45,600.76, 68,422.80 and 31,582.36 is: 47,388.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,600.76 : 68,422.80 = 31,582.36 : x
  2. Step 2: Convert to fraction form
    45,600.76/68,422.80 = 31,582.36/x
  3. Step 3: Cross multiply
    45,600.76x = 68,422.80 × 31,582.36
  4. Step 4: Simplify right side
    45,600.76x = 2,160,953,501.81
  5. Step 5: Solve for x
    x = 2,160,953,501.81/45,600.76
  6. Step 6: Final answer
    x = 47,388.54

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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.