Home / 86,846.20-130,172.10-49,424.20

Finding the Fourth Proportional to 86,846.20, 130,172.10 and 49,424.20

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Solution

The fourth proportional to 86,846.20, 130,172.10 and 49,424.20 is: 74,080.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,846.20 : 130,172.10 = 49,424.20 : x
  2. Step 2: Convert to fraction form
    86,846.20/130,172.10 = 49,424.20/x
  3. Step 3: Cross multiply
    86,846.20x = 130,172.10 × 49,424.20
  4. Step 4: Simplify right side
    86,846.20x = 6,433,651,904.82
  5. Step 5: Solve for x
    x = 6,433,651,904.82/86,846.20
  6. Step 6: Final answer
    x = 74,080.98

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1.5x scale

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.