Home / 76,961.64-106,206.03-42,970.65

Finding the Fourth Proportional to 76,961.64, 106,206.03 and 42,970.65

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Solution

The fourth proportional to 76,961.64, 106,206.03 and 42,970.65 is: 59,298.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,961.64 : 106,206.03 = 42,970.65 : x
  2. Step 2: Convert to fraction form
    76,961.64/106,206.03 = 42,970.65/x
  3. Step 3: Cross multiply
    76,961.64x = 106,206.03 × 42,970.65
  4. Step 4: Simplify right side
    76,961.64x = 4,563,741,928.17
  5. Step 5: Solve for x
    x = 4,563,741,928.17/76,961.64
  6. Step 6: Final answer
    x = 59,298.92

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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.