Home / 89,823.40-134,747.10-30,644.20

Finding the Fourth Proportional to 89,823.40, 134,747.10 and 30,644.20

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Solution

The fourth proportional to 89,823.40, 134,747.10 and 30,644.20 is: 45,970.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,823.40 : 134,747.10 = 30,644.20 : x
  2. Step 2: Convert to fraction form
    89,823.40/134,747.10 = 30,644.20/x
  3. Step 3: Cross multiply
    89,823.40x = 134,747.10 × 30,644.20
  4. Step 4: Simplify right side
    89,823.40x = 4,129,217,081.82
  5. Step 5: Solve for x
    x = 4,129,217,081.82/89,823.40
  6. Step 6: Final answer
    x = 45,970.39

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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.