Home / 79,215.23-109,316.95-43,407.47

Finding the Fourth Proportional to 79,215.23, 109,316.95 and 43,407.47

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Solution

The fourth proportional to 79,215.23, 109,316.95 and 43,407.47 is: 59,902.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,215.23 : 109,316.95 = 43,407.47 : x
  2. Step 2: Convert to fraction form
    79,215.23/109,316.95 = 43,407.47/x
  3. Step 3: Cross multiply
    79,215.23x = 109,316.95 × 43,407.47
  4. Step 4: Simplify right side
    79,215.23x = 4,745,172,227.62
  5. Step 5: Solve for x
    x = 4,745,172,227.62/79,215.23
  6. Step 6: Final answer
    x = 59,902.27

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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.