Home / 77,982.58-107,616.81-42,173.29

Finding the Fourth Proportional to 77,982.58, 107,616.81 and 42,173.29

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Solution

The fourth proportional to 77,982.58, 107,616.81 and 42,173.29 is: 58,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,982.58 : 107,616.81 = 42,173.29 : x
  2. Step 2: Convert to fraction form
    77,982.58/107,616.81 = 42,173.29/x
  3. Step 3: Cross multiply
    77,982.58x = 107,616.81 × 42,173.29
  4. Step 4: Simplify right side
    77,982.58x = 4,538,554,937.00
  5. Step 5: Solve for x
    x = 4,538,554,937.00/77,982.58
  6. Step 6: Final answer
    x = 58,199.60

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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.