Home / 87,518.68-130,946.69-51,999.03

Finding the Fourth Proportional to 87,518.68, 130,946.69 and 51,999.03

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Solution

The fourth proportional to 87,518.68, 130,946.69 and 51,999.03 is: 77,801.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,518.68 : 130,946.69 = 51,999.03 : x
  2. Step 2: Convert to fraction form
    87,518.68/130,946.69 = 51,999.03/x
  3. Step 3: Cross multiply
    87,518.68x = 130,946.69 × 51,999.03
  4. Step 4: Simplify right side
    87,518.68x = 6,809,100,991.71
  5. Step 5: Solve for x
    x = 6,809,100,991.71/87,518.68
  6. Step 6: Final answer
    x = 77,801.69

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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.