Home / 87,021.36-130,479-37,073.52

Finding the Fourth Proportional to 87,021.36, 130,479 and 37,073.52

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Solution

The fourth proportional to 87,021.36, 130,479 and 37,073.52 is: 55,587.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,021.36 : 130,479 = 37,073.52 : x
  2. Step 2: Convert to fraction form
    87,021.36/130,479 = 37,073.52/x
  3. Step 3: Cross multiply
    87,021.36x = 130,479 × 37,073.52
  4. Step 4: Simplify right side
    87,021.36x = 4,837,315,816.08
  5. Step 5: Solve for x
    x = 4,837,315,816.08/87,021.36
  6. Step 6: Final answer
    x = 55,587.68

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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.