Home / 87,303.42-130,832.01-39,801.78

Finding the Fourth Proportional to 87,303.42, 130,832.01 and 39,801.78

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Solution

The fourth proportional to 87,303.42, 130,832.01 and 39,801.78 is: 59,646.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,303.42 : 130,832.01 = 39,801.78 : x
  2. Step 2: Convert to fraction form
    87,303.42/130,832.01 = 39,801.78/x
  3. Step 3: Cross multiply
    87,303.42x = 130,832.01 × 39,801.78
  4. Step 4: Simplify right side
    87,303.42x = 5,207,346,878.98
  5. Step 5: Solve for x
    x = 5,207,346,878.98/87,303.42
  6. Step 6: Final answer
    x = 59,646.54

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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.