Home / 56,582.92-78,088.26-31,431.88

Finding the Fourth Proportional to 56,582.92, 78,088.26 and 31,431.88

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Solution

The fourth proportional to 56,582.92, 78,088.26 and 31,431.88 is: 43,378.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,582.92 : 78,088.26 = 31,431.88 : x
  2. Step 2: Convert to fraction form
    56,582.92/78,088.26 = 31,431.88/x
  3. Step 3: Cross multiply
    56,582.92x = 78,088.26 × 31,431.88
  4. Step 4: Simplify right side
    56,582.92x = 2,454,460,817.73
  5. Step 5: Solve for x
    x = 2,454,460,817.73/56,582.92
  6. Step 6: Final answer
    x = 43,378.12

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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.