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Finding the Fourth Proportional to 89,892.30, 134,838.45 and 30,708.30

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Solution

The fourth proportional to 89,892.30, 134,838.45 and 30,708.30 is: 46,062.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,892.30 : 134,838.45 = 30,708.30 : x
  2. Step 2: Convert to fraction form
    89,892.30/134,838.45 = 30,708.30/x
  3. Step 3: Cross multiply
    89,892.30x = 134,838.45 × 30,708.30
  4. Step 4: Simplify right side
    89,892.30x = 4,140,659,574.14
  5. Step 5: Solve for x
    x = 4,140,659,574.14/89,892.30
  6. Step 6: Final answer
    x = 46,062.45

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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.