Home / 75,857.48-104,638.16-49,015.76

Finding the Fourth Proportional to 75,857.48, 104,638.16 and 49,015.76

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Solution

The fourth proportional to 75,857.48, 104,638.16 and 49,015.76 is: 67,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,857.48 : 104,638.16 = 49,015.76 : x
  2. Step 2: Convert to fraction form
    75,857.48/104,638.16 = 49,015.76/x
  3. Step 3: Cross multiply
    75,857.48x = 104,638.16 × 49,015.76
  4. Step 4: Simplify right side
    75,857.48x = 5,128,918,937.40
  5. Step 5: Solve for x
    x = 5,128,918,937.40/75,857.48
  6. Step 6: Final answer
    x = 67,612.57

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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.