Home / 81,995.04-123,031.44-48,780.72

Finding the Fourth Proportional to 81,995.04, 123,031.44 and 48,780.72

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Solution

The fourth proportional to 81,995.04, 123,031.44 and 48,780.72 is: 73,194.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,995.04 : 123,031.44 = 48,780.72 : x
  2. Step 2: Convert to fraction form
    81,995.04/123,031.44 = 48,780.72/x
  3. Step 3: Cross multiply
    81,995.04x = 123,031.44 × 48,780.72
  4. Step 4: Simplify right side
    81,995.04x = 6,001,562,225.84
  5. Step 5: Solve for x
    x = 6,001,562,225.84/81,995.04
  6. Step 6: Final answer
    x = 73,194.21

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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.