Home / 87,567.48-131,365.80-28,390.91

Finding the Fourth Proportional to 87,567.48, 131,365.80 and 28,390.91

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Solution

The fourth proportional to 87,567.48, 131,365.80 and 28,390.91 is: 42,591.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,567.48 : 131,365.80 = 28,390.91 : x
  2. Step 2: Convert to fraction form
    87,567.48/131,365.80 = 28,390.91/x
  3. Step 3: Cross multiply
    87,567.48x = 131,365.80 × 28,390.91
  4. Step 4: Simplify right side
    87,567.48x = 3,729,593,948.05
  5. Step 5: Solve for x
    x = 3,729,593,948.05/87,567.48
  6. Step 6: Final answer
    x = 42,591.08

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1.5x scale

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.