Home / 89,904.80-134,857.20-48,432.80

Finding the Fourth Proportional to 89,904.80, 134,857.20 and 48,432.80

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Solution

The fourth proportional to 89,904.80, 134,857.20 and 48,432.80 is: 72,649.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,904.80 : 134,857.20 = 48,432.80 : x
  2. Step 2: Convert to fraction form
    89,904.80/134,857.20 = 48,432.80/x
  3. Step 3: Cross multiply
    89,904.80x = 134,857.20 × 48,432.80
  4. Step 4: Simplify right side
    89,904.80x = 6,531,511,796.16
  5. Step 5: Solve for x
    x = 6,531,511,796.16/89,904.80
  6. Step 6: Final answer
    x = 72,649.20

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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.