Home / 53,123.75-73,288.81-31,609.21

Finding the Fourth Proportional to 53,123.75, 73,288.81 and 31,609.21

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Solution

The fourth proportional to 53,123.75, 73,288.81 and 31,609.21 is: 43,607.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,123.75 : 73,288.81 = 31,609.21 : x
  2. Step 2: Convert to fraction form
    53,123.75/73,288.81 = 31,609.21/x
  3. Step 3: Cross multiply
    53,123.75x = 73,288.81 × 31,609.21
  4. Step 4: Simplify right side
    53,123.75x = 2,316,600,861.45
  5. Step 5: Solve for x
    x = 2,316,600,861.45/53,123.75
  6. Step 6: Final answer
    x = 43,607.63

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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.