Home / 81,166.32-112,152.60-62,465.04

Finding the Fourth Proportional to 81,166.32, 112,152.60 and 62,465.04

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Solution

The fourth proportional to 81,166.32, 112,152.60 and 62,465.04 is: 86,311.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,166.32 : 112,152.60 = 62,465.04 : x
  2. Step 2: Convert to fraction form
    81,166.32/112,152.60 = 62,465.04/x
  3. Step 3: Cross multiply
    81,166.32x = 112,152.60 × 62,465.04
  4. Step 4: Simplify right side
    81,166.32x = 7,005,616,645.10
  5. Step 5: Solve for x
    x = 7,005,616,645.10/81,166.32
  6. Step 6: Final answer
    x = 86,311.87

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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.