Home / 79,405.32-109,581.06-45,416.88

Finding the Fourth Proportional to 79,405.32, 109,581.06 and 45,416.88

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Solution

The fourth proportional to 79,405.32, 109,581.06 and 45,416.88 is: 62,676.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,405.32 : 109,581.06 = 45,416.88 : x
  2. Step 2: Convert to fraction form
    79,405.32/109,581.06 = 45,416.88/x
  3. Step 3: Cross multiply
    79,405.32x = 109,581.06 × 45,416.88
  4. Step 4: Simplify right side
    79,405.32x = 4,976,829,852.29
  5. Step 5: Solve for x
    x = 4,976,829,852.29/79,405.32
  6. Step 6: Final answer
    x = 62,676.28

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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.