Home / 89,241.37-123,143.96-53,430.46

Finding the Fourth Proportional to 89,241.37, 123,143.96 and 53,430.46

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Solution

The fourth proportional to 89,241.37, 123,143.96 and 53,430.46 is: 73,728.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,241.37 : 123,143.96 = 53,430.46 : x
  2. Step 2: Convert to fraction form
    89,241.37/123,143.96 = 53,430.46/x
  3. Step 3: Cross multiply
    89,241.37x = 123,143.96 × 53,430.46
  4. Step 4: Simplify right side
    89,241.37x = 6,579,638,254.74
  5. Step 5: Solve for x
    x = 6,579,638,254.74/89,241.37
  6. Step 6: Final answer
    x = 73,728.57

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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.