Home / 88,428.32-122,029.28-48,142.88

Finding the Fourth Proportional to 88,428.32, 122,029.28 and 48,142.88

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Solution

The fourth proportional to 88,428.32, 122,029.28 and 48,142.88 is: 66,436.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,428.32 : 122,029.28 = 48,142.88 : x
  2. Step 2: Convert to fraction form
    88,428.32/122,029.28 = 48,142.88/x
  3. Step 3: Cross multiply
    88,428.32x = 122,029.28 × 48,142.88
  4. Step 4: Simplify right side
    88,428.32x = 5,874,840,983.53
  5. Step 5: Solve for x
    x = 5,874,840,983.53/88,428.32
  6. Step 6: Final answer
    x = 66,436.19

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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.