Home / 79,705.20-109,988.96-45,711.93

Finding the Fourth Proportional to 79,705.20, 109,988.96 and 45,711.93

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Solution

The fourth proportional to 79,705.20, 109,988.96 and 45,711.93 is: 63,080.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,705.20 : 109,988.96 = 45,711.93 : x
  2. Step 2: Convert to fraction form
    79,705.20/109,988.96 = 45,711.93/x
  3. Step 3: Cross multiply
    79,705.20x = 109,988.96 × 45,711.93
  4. Step 4: Simplify right side
    79,705.20x = 5,027,807,640.29
  5. Step 5: Solve for x
    x = 5,027,807,640.29/79,705.20
  6. Step 6: Final answer
    x = 63,080.05

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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.