Home / 81,764.64-112,835.52-45,956.16

Finding the Fourth Proportional to 81,764.64, 112,835.52 and 45,956.16

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Solution

The fourth proportional to 81,764.64, 112,835.52 and 45,956.16 is: 63,419.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,764.64 : 112,835.52 = 45,956.16 : x
  2. Step 2: Convert to fraction form
    81,764.64/112,835.52 = 45,956.16/x
  3. Step 3: Cross multiply
    81,764.64x = 112,835.52 × 45,956.16
  4. Step 4: Simplify right side
    81,764.64x = 5,185,487,210.80
  5. Step 5: Solve for x
    x = 5,185,487,210.80/81,764.64
  6. Step 6: Final answer
    x = 63,419.68

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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.