Home / 89,975.64-134,949.63-30,005.17

Finding the Fourth Proportional to 89,975.64, 134,949.63 and 30,005.17

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Solution

The fourth proportional to 89,975.64, 134,949.63 and 30,005.17 is: 45,003.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,975.64 : 134,949.63 = 30,005.17 : x
  2. Step 2: Convert to fraction form
    89,975.64/134,949.63 = 30,005.17/x
  3. Step 3: Cross multiply
    89,975.64x = 134,949.63 × 30,005.17
  4. Step 4: Simplify right side
    89,975.64x = 4,049,185,764.81
  5. Step 5: Solve for x
    x = 4,049,185,764.81/89,975.64
  6. Step 6: Final answer
    x = 45,003.13

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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.