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Finding the Fourth Proportional to 78,302.79, 117,454.19 and 22,898.79

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Solution

The fourth proportional to 78,302.79, 117,454.19 and 22,898.79 is: 34,348.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,302.79 : 117,454.19 = 22,898.79 : x
  2. Step 2: Convert to fraction form
    78,302.79/117,454.19 = 22,898.79/x
  3. Step 3: Cross multiply
    78,302.79x = 117,454.19 × 22,898.79
  4. Step 4: Simplify right side
    78,302.79x = 2,689,558,716.94
  5. Step 5: Solve for x
    x = 2,689,558,716.94/78,302.79
  6. Step 6: Final answer
    x = 34,348.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.