Home / 89,237.84-133,869.10-30,090.42

Finding the Fourth Proportional to 89,237.84, 133,869.10 and 30,090.42

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Solution

The fourth proportional to 89,237.84, 133,869.10 and 30,090.42 is: 45,139.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,237.84 : 133,869.10 = 30,090.42 : x
  2. Step 2: Convert to fraction form
    89,237.84/133,869.10 = 30,090.42/x
  3. Step 3: Cross multiply
    89,237.84x = 133,869.10 × 30,090.42
  4. Step 4: Simplify right side
    89,237.84x = 4,028,177,444.02
  5. Step 5: Solve for x
    x = 4,028,177,444.02/89,237.84
  6. Step 6: Final answer
    x = 45,139.79

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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.