Home / 89,370.96-123,337.56-51,142.20

Finding the Fourth Proportional to 89,370.96, 123,337.56 and 51,142.20

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Solution

The fourth proportional to 89,370.96, 123,337.56 and 51,142.20 is: 70,579.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,370.96 : 123,337.56 = 51,142.20 : x
  2. Step 2: Convert to fraction form
    89,370.96/123,337.56 = 51,142.20/x
  3. Step 3: Cross multiply
    89,370.96x = 123,337.56 × 51,142.20
  4. Step 4: Simplify right side
    89,370.96x = 6,307,754,161.03
  5. Step 5: Solve for x
    x = 6,307,754,161.03/89,370.96
  6. Step 6: Final answer
    x = 70,579.46

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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.