Home / 99,256.50-136,972.26-53,935.20

Finding the Fourth Proportional to 99,256.50, 136,972.26 and 53,935.20

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Solution

The fourth proportional to 99,256.50, 136,972.26 and 53,935.20 is: 74,429.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,256.50 : 136,972.26 = 53,935.20 : x
  2. Step 2: Convert to fraction form
    99,256.50/136,972.26 = 53,935.20/x
  3. Step 3: Cross multiply
    99,256.50x = 136,972.26 × 53,935.20
  4. Step 4: Simplify right side
    99,256.50x = 7,387,626,237.55
  5. Step 5: Solve for x
    x = 7,387,626,237.55/99,256.50
  6. Step 6: Final answer
    x = 74,429.65

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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.