Home / 75,259.50-103,772.98-47,999.12

Finding the Fourth Proportional to 75,259.50, 103,772.98 and 47,999.12

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Solution

The fourth proportional to 75,259.50, 103,772.98 and 47,999.12 is: 66,184.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,259.50 : 103,772.98 = 47,999.12 : x
  2. Step 2: Convert to fraction form
    75,259.50/103,772.98 = 47,999.12/x
  3. Step 3: Cross multiply
    75,259.50x = 103,772.98 × 47,999.12
  4. Step 4: Simplify right side
    75,259.50x = 4,981,011,719.78
  5. Step 5: Solve for x
    x = 4,981,011,719.78/75,259.50
  6. Step 6: Final answer
    x = 66,184.49

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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.