Home / 89,035.40-133,553.10-42,379.40

Finding the Fourth Proportional to 89,035.40, 133,553.10 and 42,379.40

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Solution

The fourth proportional to 89,035.40, 133,553.10 and 42,379.40 is: 63,569.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,035.40 : 133,553.10 = 42,379.40 : x
  2. Step 2: Convert to fraction form
    89,035.40/133,553.10 = 42,379.40/x
  3. Step 3: Cross multiply
    89,035.40x = 133,553.10 × 42,379.40
  4. Step 4: Simplify right side
    89,035.40x = 5,659,900,246.14
  5. Step 5: Solve for x
    x = 5,659,900,246.14/89,035.40
  6. Step 6: Final answer
    x = 63,569.10

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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.