Home / 89,669.84-123,744.76-51,430.88

Finding the Fourth Proportional to 89,669.84, 123,744.76 and 51,430.88

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Solution

The fourth proportional to 89,669.84, 123,744.76 and 51,430.88 is: 70,974.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,669.84 : 123,744.76 = 51,430.88 : x
  2. Step 2: Convert to fraction form
    89,669.84/123,744.76 = 51,430.88/x
  3. Step 3: Cross multiply
    89,669.84x = 123,744.76 × 51,430.88
  4. Step 4: Simplify right side
    89,669.84x = 6,364,301,902.19
  5. Step 5: Solve for x
    x = 6,364,301,902.19/89,669.84
  6. Step 6: Final answer
    x = 70,974.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.