Home / 89,461.52-123,440.64-55,478.24

Finding the Fourth Proportional to 89,461.52, 123,440.64 and 55,478.24

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Solution

The fourth proportional to 89,461.52, 123,440.64 and 55,478.24 is: 76,549.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,461.52 : 123,440.64 = 55,478.24 : x
  2. Step 2: Convert to fraction form
    89,461.52/123,440.64 = 55,478.24/x
  3. Step 3: Cross multiply
    89,461.52x = 123,440.64 × 55,478.24
  4. Step 4: Simplify right side
    89,461.52x = 6,848,269,451.67
  5. Step 5: Solve for x
    x = 6,848,269,451.67/89,461.52
  6. Step 6: Final answer
    x = 76,549.89

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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.