Home / 87,436.40-130,852.20-52,401.20

Finding the Fourth Proportional to 87,436.40, 130,852.20 and 52,401.20

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Solution

The fourth proportional to 87,436.40, 130,852.20 and 52,401.20 is: 78,420.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,436.40 : 130,852.20 = 52,401.20 : x
  2. Step 2: Convert to fraction form
    87,436.40/130,852.20 = 52,401.20/x
  3. Step 3: Cross multiply
    87,436.40x = 130,852.20 × 52,401.20
  4. Step 4: Simplify right side
    87,436.40x = 6,856,812,302.64
  5. Step 5: Solve for x
    x = 6,856,812,302.64/87,436.40
  6. Step 6: Final answer
    x = 78,420.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.