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Finding the Fourth Proportional to 88,690.80, 133,036.20 and 29,528.40

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Solution

The fourth proportional to 88,690.80, 133,036.20 and 29,528.40 is: 44,292.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,690.80 : 133,036.20 = 29,528.40 : x
  2. Step 2: Convert to fraction form
    88,690.80/133,036.20 = 29,528.40/x
  3. Step 3: Cross multiply
    88,690.80x = 133,036.20 × 29,528.40
  4. Step 4: Simplify right side
    88,690.80x = 3,928,346,128.08
  5. Step 5: Solve for x
    x = 3,928,346,128.08/88,690.80
  6. Step 6: Final answer
    x = 44,292.60

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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.