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Finding the Fourth Proportional to 79,803.81, 110,127.91 and 43,505.65

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Solution

The fourth proportional to 79,803.81, 110,127.91 and 43,505.65 is: 60,037.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,803.81 : 110,127.91 = 43,505.65 : x
  2. Step 2: Convert to fraction form
    79,803.81/110,127.91 = 43,505.65/x
  3. Step 3: Cross multiply
    79,803.81x = 110,127.91 × 43,505.65
  4. Step 4: Simplify right side
    79,803.81x = 4,791,186,307.69
  5. Step 5: Solve for x
    x = 4,791,186,307.69/79,803.81
  6. Step 6: Final answer
    x = 60,037.06

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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.