Home / 89,434.64-123,364.92-53,111.40

Finding the Fourth Proportional to 89,434.64, 123,364.92 and 53,111.40

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Solution

The fourth proportional to 89,434.64, 123,364.92 and 53,111.40 is: 73,261.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,434.64 : 123,364.92 = 53,111.40 : x
  2. Step 2: Convert to fraction form
    89,434.64/123,364.92 = 53,111.40/x
  3. Step 3: Cross multiply
    89,434.64x = 123,364.92 × 53,111.40
  4. Step 4: Simplify right side
    89,434.64x = 6,552,083,612.09
  5. Step 5: Solve for x
    x = 6,552,083,612.09/89,434.64
  6. Step 6: Final answer
    x = 73,261.14

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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.