Home / 56,123.09-77,450.33-30,629.66

Finding the Fourth Proportional to 56,123.09, 77,450.33 and 30,629.66

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Solution

The fourth proportional to 56,123.09, 77,450.33 and 30,629.66 is: 42,269.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,123.09 : 77,450.33 = 30,629.66 : x
  2. Step 2: Convert to fraction form
    56,123.09/77,450.33 = 30,629.66/x
  3. Step 3: Cross multiply
    56,123.09x = 77,450.33 × 30,629.66
  4. Step 4: Simplify right side
    56,123.09x = 2,372,277,274.79
  5. Step 5: Solve for x
    x = 2,372,277,274.79/56,123.09
  6. Step 6: Final answer
    x = 42,269.19

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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.