Home / 89,351.40-133,840.80-42,006.90

Finding the Fourth Proportional to 89,351.40, 133,840.80 and 42,006.90

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Solution

The fourth proportional to 89,351.40, 133,840.80 and 42,006.90 is: 62,922.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,351.40 : 133,840.80 = 42,006.90 : x
  2. Step 2: Convert to fraction form
    89,351.40/133,840.80 = 42,006.90/x
  3. Step 3: Cross multiply
    89,351.40x = 133,840.80 × 42,006.90
  4. Step 4: Simplify right side
    89,351.40x = 5,622,237,101.52
  5. Step 5: Solve for x
    x = 5,622,237,101.52/89,351.40
  6. Step 6: Final answer
    x = 62,922.76

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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.