Home / 89,426.45-134,056.28-30,220.72

Finding the Fourth Proportional to 89,426.45, 134,056.28 and 30,220.72

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Solution

The fourth proportional to 89,426.45, 134,056.28 and 30,220.72 is: 45,302.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,426.45 : 134,056.28 = 30,220.72 : x
  2. Step 2: Convert to fraction form
    89,426.45/134,056.28 = 30,220.72/x
  3. Step 3: Cross multiply
    89,426.45x = 134,056.28 × 30,220.72
  4. Step 4: Simplify right side
    89,426.45x = 4,051,277,042.53
  5. Step 5: Solve for x
    x = 4,051,277,042.53/89,426.45
  6. Step 6: Final answer
    x = 45,302.89

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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.