Home / 77,964.58-107,591.14-42,154.58

Finding the Fourth Proportional to 77,964.58, 107,591.14 and 42,154.58

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Solution

The fourth proportional to 77,964.58, 107,591.14 and 42,154.58 is: 58,173.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,964.58 : 107,591.14 = 42,154.58 : x
  2. Step 2: Convert to fraction form
    77,964.58/107,591.14 = 42,154.58/x
  3. Step 3: Cross multiply
    77,964.58x = 107,591.14 × 42,154.58
  4. Step 4: Simplify right side
    77,964.58x = 4,535,459,318.42
  5. Step 5: Solve for x
    x = 4,535,459,318.42/77,964.58
  6. Step 6: Final answer
    x = 58,173.33

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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.