Home / 75,407.08-103,991.78-48,502.12

Finding the Fourth Proportional to 75,407.08, 103,991.78 and 48,502.12

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Solution

The fourth proportional to 75,407.08, 103,991.78 and 48,502.12 is: 66,887.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,407.08 : 103,991.78 = 48,502.12 : x
  2. Step 2: Convert to fraction form
    75,407.08/103,991.78 = 48,502.12/x
  3. Step 3: Cross multiply
    75,407.08x = 103,991.78 × 48,502.12
  4. Step 4: Simplify right side
    75,407.08x = 5,043,821,792.57
  5. Step 5: Solve for x
    x = 5,043,821,792.57/75,407.08
  6. Step 6: Final answer
    x = 66,887.91

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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.