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Finding the Fourth Proportional to 88,719.40, 133,079.10 and 42,063.40

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Solution

The fourth proportional to 88,719.40, 133,079.10 and 42,063.40 is: 63,095.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,719.40 : 133,079.10 = 42,063.40 : x
  2. Step 2: Convert to fraction form
    88,719.40/133,079.10 = 42,063.40/x
  3. Step 3: Cross multiply
    88,719.40x = 133,079.10 × 42,063.40
  4. Step 4: Simplify right side
    88,719.40x = 5,597,759,414.94
  5. Step 5: Solve for x
    x = 5,597,759,414.94/88,719.40
  6. Step 6: Final answer
    x = 63,095.10

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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.