Home / 48,018.20-71,984.10-31,386.20

Finding the Fourth Proportional to 48,018.20, 71,984.10 and 31,386.20

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Solution

The fourth proportional to 48,018.20, 71,984.10 and 31,386.20 is: 47,051.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,018.20 : 71,984.10 = 31,386.20 : x
  2. Step 2: Convert to fraction form
    48,018.20/71,984.10 = 31,386.20/x
  3. Step 3: Cross multiply
    48,018.20x = 71,984.10 × 31,386.20
  4. Step 4: Simplify right side
    48,018.20x = 2,259,307,359.42
  5. Step 5: Solve for x
    x = 2,259,307,359.42/48,018.20
  6. Step 6: Final answer
    x = 47,051.06

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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.