Home / 48,803.45-67,355.98-30,900.12

Finding the Fourth Proportional to 48,803.45, 67,355.98 and 30,900.12

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Solution

The fourth proportional to 48,803.45, 67,355.98 and 30,900.12 is: 42,646.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,803.45 : 67,355.98 = 30,900.12 : x
  2. Step 2: Convert to fraction form
    48,803.45/67,355.98 = 30,900.12/x
  3. Step 3: Cross multiply
    48,803.45x = 67,355.98 × 30,900.12
  4. Step 4: Simplify right side
    48,803.45x = 2,081,307,534.88
  5. Step 5: Solve for x
    x = 2,081,307,534.88/48,803.45
  6. Step 6: Final answer
    x = 42,646.73

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1.5x scale

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.