Home / 81,495.71-112,500.90-51,325.36

Finding the Fourth Proportional to 81,495.71, 112,500.90 and 51,325.36

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Solution

The fourth proportional to 81,495.71, 112,500.90 and 51,325.36 is: 70,852.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,495.71 : 112,500.90 = 51,325.36 : x
  2. Step 2: Convert to fraction form
    81,495.71/112,500.90 = 51,325.36/x
  3. Step 3: Cross multiply
    81,495.71x = 112,500.90 × 51,325.36
  4. Step 4: Simplify right side
    81,495.71x = 5,774,148,911.57
  5. Step 5: Solve for x
    x = 5,774,148,911.57/81,495.71
  6. Step 6: Final answer
    x = 70,852.18

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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.