Home / 79,390.84-109,553.34-43,575.16

Finding the Fourth Proportional to 79,390.84, 109,553.34 and 43,575.16

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Solution

The fourth proportional to 79,390.84, 109,553.34 and 43,575.16 is: 60,130.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,390.84 : 109,553.34 = 43,575.16 : x
  2. Step 2: Convert to fraction form
    79,390.84/109,553.34 = 43,575.16/x
  3. Step 3: Cross multiply
    79,390.84x = 109,553.34 × 43,575.16
  4. Step 4: Simplify right side
    79,390.84x = 4,773,804,319.03
  5. Step 5: Solve for x
    x = 4,773,804,319.03/79,390.84
  6. Step 6: Final answer
    x = 60,130.42

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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.