Home / 89,157.11-123,038.19-53,348.63

Finding the Fourth Proportional to 89,157.11, 123,038.19 and 53,348.63

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Solution

The fourth proportional to 89,157.11, 123,038.19 and 53,348.63 is: 73,621.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,157.11 : 123,038.19 = 53,348.63 : x
  2. Step 2: Convert to fraction form
    89,157.11/123,038.19 = 53,348.63/x
  3. Step 3: Cross multiply
    89,157.11x = 123,038.19 × 53,348.63
  4. Step 4: Simplify right side
    89,157.11x = 6,563,918,258.99
  5. Step 5: Solve for x
    x = 6,563,918,258.99/89,157.11
  6. Step 6: Final answer
    x = 73,621.93

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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.