Home / 75,119.90-103,665.48-43,288.76

Finding the Fourth Proportional to 75,119.90, 103,665.48 and 43,288.76

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Solution

The fourth proportional to 75,119.90, 103,665.48 and 43,288.76 is: 59,738.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,119.90 : 103,665.48 = 43,288.76 : x
  2. Step 2: Convert to fraction form
    75,119.90/103,665.48 = 43,288.76/x
  3. Step 3: Cross multiply
    75,119.90x = 103,665.48 × 43,288.76
  4. Step 4: Simplify right side
    75,119.90x = 4,487,550,084.00
  5. Step 5: Solve for x
    x = 4,487,550,084.00/75,119.90
  6. Step 6: Final answer
    x = 59,738.50

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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.