Home / 99,274.76-137,004.40-56,839.64

Finding the Fourth Proportional to 99,274.76, 137,004.40 and 56,839.64

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Solution

The fourth proportional to 99,274.76, 137,004.40 and 56,839.64 is: 78,441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,274.76 : 137,004.40 = 56,839.64 : x
  2. Step 2: Convert to fraction form
    99,274.76/137,004.40 = 56,839.64/x
  3. Step 3: Cross multiply
    99,274.76x = 137,004.40 × 56,839.64
  4. Step 4: Simplify right side
    99,274.76x = 7,787,280,774.42
  5. Step 5: Solve for x
    x = 7,787,280,774.42/99,274.76
  6. Step 6: Final answer
    x = 78,441.70

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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.