Home / 79,785.56-110,077.16-49,560.14

Finding the Fourth Proportional to 79,785.56, 110,077.16 and 49,560.14

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Solution

The fourth proportional to 79,785.56, 110,077.16 and 49,560.14 is: 68,376.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,785.56 : 110,077.16 = 49,560.14 : x
  2. Step 2: Convert to fraction form
    79,785.56/110,077.16 = 49,560.14/x
  3. Step 3: Cross multiply
    79,785.56x = 110,077.16 × 49,560.14
  4. Step 4: Simplify right side
    79,785.56x = 5,455,439,460.40
  5. Step 5: Solve for x
    x = 5,455,439,460.40/79,785.56
  6. Step 6: Final answer
    x = 68,376.28

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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.