Home / 99,555.35-137,386.32-54,843.35

Finding the Fourth Proportional to 99,555.35, 137,386.32 and 54,843.35

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Solution

The fourth proportional to 99,555.35, 137,386.32 and 54,843.35 is: 75,683.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,555.35 : 137,386.32 = 54,843.35 : x
  2. Step 2: Convert to fraction form
    99,555.35/137,386.32 = 54,843.35/x
  3. Step 3: Cross multiply
    99,555.35x = 137,386.32 × 54,843.35
  4. Step 4: Simplify right side
    99,555.35x = 7,534,725,861.24
  5. Step 5: Solve for x
    x = 7,534,725,861.24/99,555.35
  6. Step 6: Final answer
    x = 75,683.79

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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.