Home / 84,632.40-126,953.96-28,468.08

Finding the Fourth Proportional to 84,632.40, 126,953.96 and 28,468.08

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Solution

The fourth proportional to 84,632.40, 126,953.96 and 28,468.08 is: 42,703.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,632.40 : 126,953.96 = 28,468.08 : x
  2. Step 2: Convert to fraction form
    84,632.40/126,953.96 = 28,468.08/x
  3. Step 3: Cross multiply
    84,632.40x = 126,953.96 × 28,468.08
  4. Step 4: Simplify right side
    84,632.40x = 3,614,135,489.60
  5. Step 5: Solve for x
    x = 3,614,135,489.60/84,632.40
  6. Step 6: Final answer
    x = 42,703.92

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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.