Home / 77,964.45-107,591.09-42,154.46

Finding the Fourth Proportional to 77,964.45, 107,591.09 and 42,154.46

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Solution

The fourth proportional to 77,964.45, 107,591.09 and 42,154.46 is: 58,173.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,964.45 : 107,591.09 = 42,154.46 : x
  2. Step 2: Convert to fraction form
    77,964.45/107,591.09 = 42,154.46/x
  3. Step 3: Cross multiply
    77,964.45x = 107,591.09 × 42,154.46
  4. Step 4: Simplify right side
    77,964.45x = 4,535,443,954.50
  5. Step 5: Solve for x
    x = 4,535,443,954.50/77,964.45
  6. Step 6: Final answer
    x = 58,173.23

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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.