Home / 81,612.12-112,626.74-45,804.86

Finding the Fourth Proportional to 81,612.12, 112,626.74 and 45,804.86

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Solution

The fourth proportional to 81,612.12, 112,626.74 and 45,804.86 is: 63,211.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,612.12 : 112,626.74 = 45,804.86 : x
  2. Step 2: Convert to fraction form
    81,612.12/112,626.74 = 45,804.86/x
  3. Step 3: Cross multiply
    81,612.12x = 112,626.74 × 45,804.86
  4. Step 4: Simplify right side
    81,612.12x = 5,158,852,057.96
  5. Step 5: Solve for x
    x = 5,158,852,057.96/81,612.12
  6. Step 6: Final answer
    x = 63,211.84

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1.5x scale

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.