Home / 87,070.50-120,168.63-51,263.82

Finding the Fourth Proportional to 87,070.50, 120,168.63 and 51,263.82

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Solution

The fourth proportional to 87,070.50, 120,168.63 and 51,263.82 is: 70,750.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,070.50 : 120,168.63 = 51,263.82 : x
  2. Step 2: Convert to fraction form
    87,070.50/120,168.63 = 51,263.82/x
  3. Step 3: Cross multiply
    87,070.50x = 120,168.63 × 51,263.82
  4. Step 4: Simplify right side
    87,070.50x = 6,160,303,017.97
  5. Step 5: Solve for x
    x = 6,160,303,017.97/87,070.50
  6. Step 6: Final answer
    x = 70,750.75

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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.