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Finding the Fourth Proportional to 88,455.60, 122,068.80 and 50,731.20

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Solution

The fourth proportional to 88,455.60, 122,068.80 and 50,731.20 is: 70,009.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,455.60 : 122,068.80 = 50,731.20 : x
  2. Step 2: Convert to fraction form
    88,455.60/122,068.80 = 50,731.20/x
  3. Step 3: Cross multiply
    88,455.60x = 122,068.80 × 50,731.20
  4. Step 4: Simplify right side
    88,455.60x = 6,192,696,706.56
  5. Step 5: Solve for x
    x = 6,192,696,706.56/88,455.60
  6. Step 6: Final answer
    x = 70,009.10

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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.