Home / 99,364.08-137,123.37-54,042.42

Finding the Fourth Proportional to 99,364.08, 137,123.37 and 54,042.42

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Solution

The fourth proportional to 99,364.08, 137,123.37 and 54,042.42 is: 74,579.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,364.08 : 137,123.37 = 54,042.42 : x
  2. Step 2: Convert to fraction form
    99,364.08/137,123.37 = 54,042.42/x
  3. Step 3: Cross multiply
    99,364.08x = 137,123.37 × 54,042.42
  4. Step 4: Simplify right side
    99,364.08x = 7,410,478,753.36
  5. Step 5: Solve for x
    x = 7,410,478,753.36/99,364.08
  6. Step 6: Final answer
    x = 74,579.05

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1.5x scale

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.