Home / 76,813.64-106,009.13-42,365.12

Finding the Fourth Proportional to 76,813.64, 106,009.13 and 42,365.12

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Solution

The fourth proportional to 76,813.64, 106,009.13 and 42,365.12 is: 58,467.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,813.64 : 106,009.13 = 42,365.12 : x
  2. Step 2: Convert to fraction form
    76,813.64/106,009.13 = 42,365.12/x
  3. Step 3: Cross multiply
    76,813.64x = 106,009.13 × 42,365.12
  4. Step 4: Simplify right side
    76,813.64x = 4,491,088,771.67
  5. Step 5: Solve for x
    x = 4,491,088,771.67/76,813.64
  6. Step 6: Final answer
    x = 58,467.33

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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.