Home / 50,875.20-70,126.86-40,102.61

Finding the Fourth Proportional to 50,875.20, 70,126.86 and 40,102.61

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Solution

The fourth proportional to 50,875.20, 70,126.86 and 40,102.61 is: 55,277.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,875.20 : 70,126.86 = 40,102.61 : x
  2. Step 2: Convert to fraction form
    50,875.20/70,126.86 = 40,102.61/x
  3. Step 3: Cross multiply
    50,875.20x = 70,126.86 × 40,102.61
  4. Step 4: Simplify right side
    50,875.20x = 2,812,270,117.10
  5. Step 5: Solve for x
    x = 2,812,270,117.10/50,875.20
  6. Step 6: Final answer
    x = 55,277.82

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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.