Home / 56,717.31-78,270.39-31,566.81

Finding the Fourth Proportional to 56,717.31, 78,270.39 and 31,566.81

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Solution

The fourth proportional to 56,717.31, 78,270.39 and 31,566.81 is: 43,562.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,717.31 : 78,270.39 = 31,566.81 : x
  2. Step 2: Convert to fraction form
    56,717.31/78,270.39 = 31,566.81/x
  3. Step 3: Cross multiply
    56,717.31x = 78,270.39 × 31,566.81
  4. Step 4: Simplify right side
    56,717.31x = 2,470,746,529.76
  5. Step 5: Solve for x
    x = 2,470,746,529.76/56,717.31
  6. Step 6: Final answer
    x = 43,562.48

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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.