Home / 69,711.95-96,194.69-39,490.81

Finding the Fourth Proportional to 69,711.95, 96,194.69 and 39,490.81

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Solution

The fourth proportional to 69,711.95, 96,194.69 and 39,490.81 is: 54,492.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,711.95 : 96,194.69 = 39,490.81 : x
  2. Step 2: Convert to fraction form
    69,711.95/96,194.69 = 39,490.81/x
  3. Step 3: Cross multiply
    69,711.95x = 96,194.69 × 39,490.81
  4. Step 4: Simplify right side
    69,711.95x = 3,798,805,787.86
  5. Step 5: Solve for x
    x = 3,798,805,787.86/69,711.95
  6. Step 6: Final answer
    x = 54,492.89

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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.