Home / 79,140.13-109,213.38-43,330.14

Finding the Fourth Proportional to 79,140.13, 109,213.38 and 43,330.14

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Solution

The fourth proportional to 79,140.13, 109,213.38 and 43,330.14 is: 59,795.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,140.13 : 109,213.38 = 43,330.14 : x
  2. Step 2: Convert to fraction form
    79,140.13/109,213.38 = 43,330.14/x
  3. Step 3: Cross multiply
    79,140.13x = 109,213.38 × 43,330.14
  4. Step 4: Simplify right side
    79,140.13x = 4,732,231,045.27
  5. Step 5: Solve for x
    x = 4,732,231,045.27/79,140.13
  6. Step 6: Final answer
    x = 59,795.60

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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.