Home / 87,302.70-120,492.18-51,501.48

Finding the Fourth Proportional to 87,302.70, 120,492.18 and 51,501.48

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Solution

The fourth proportional to 87,302.70, 120,492.18 and 51,501.48 is: 71,080.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,302.70 : 120,492.18 = 51,501.48 : x
  2. Step 2: Convert to fraction form
    87,302.70/120,492.18 = 51,501.48/x
  3. Step 3: Cross multiply
    87,302.70x = 120,492.18 × 51,501.48
  4. Step 4: Simplify right side
    87,302.70x = 6,205,525,598.43
  5. Step 5: Solve for x
    x = 6,205,525,598.43/87,302.70
  6. Step 6: Final answer
    x = 71,080.57

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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.