Home / 99,688.08-137,567.52-54,976.08

Finding the Fourth Proportional to 99,688.08, 137,567.52 and 54,976.08

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Solution

The fourth proportional to 99,688.08, 137,567.52 and 54,976.08 is: 75,865.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,688.08 : 137,567.52 = 54,976.08 : x
  2. Step 2: Convert to fraction form
    99,688.08/137,567.52 = 54,976.08/x
  3. Step 3: Cross multiply
    99,688.08x = 137,567.52 × 54,976.08
  4. Step 4: Simplify right side
    99,688.08x = 7,562,922,984.92
  5. Step 5: Solve for x
    x = 7,562,922,984.92/99,688.08
  6. Step 6: Final answer
    x = 75,865.87

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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.