Home / 89,384.20-134,036.70-30,203.80

Finding the Fourth Proportional to 89,384.20, 134,036.70 and 30,203.80

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Solution

The fourth proportional to 89,384.20, 134,036.70 and 30,203.80 is: 45,292.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,384.20 : 134,036.70 = 30,203.80 : x
  2. Step 2: Convert to fraction form
    89,384.20/134,036.70 = 30,203.80/x
  3. Step 3: Cross multiply
    89,384.20x = 134,036.70 × 30,203.80
  4. Step 4: Simplify right side
    89,384.20x = 4,048,417,679.46
  5. Step 5: Solve for x
    x = 4,048,417,679.46/89,384.20
  6. Step 6: Final answer
    x = 45,292.32

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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.