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Finding the Fourth Proportional to 84,624.79, 126,938.99 and 28,466.59

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Solution

The fourth proportional to 84,624.79, 126,938.99 and 28,466.59 is: 42,700.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,624.79 : 126,938.99 = 28,466.59 : x
  2. Step 2: Convert to fraction form
    84,624.79/126,938.99 = 28,466.59/x
  3. Step 3: Cross multiply
    84,624.79x = 126,938.99 × 28,466.59
  4. Step 4: Simplify right side
    84,624.79x = 3,613,520,183.34
  5. Step 5: Solve for x
    x = 3,613,520,183.34/84,624.79
  6. Step 6: Final answer
    x = 42,700.49

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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.