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Finding the Fourth Proportional to 60,080.99, 90,121.48 and 20,637.83

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Solution

The fourth proportional to 60,080.99, 90,121.48 and 20,637.83 is: 30,956.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,080.99 : 90,121.48 = 20,637.83 : x
  2. Step 2: Convert to fraction form
    60,080.99/90,121.48 = 20,637.83/x
  3. Step 3: Cross multiply
    60,080.99x = 90,121.48 × 20,637.83
  4. Step 4: Simplify right side
    60,080.99x = 1,859,911,957.30
  5. Step 5: Solve for x
    x = 1,859,911,957.30/60,080.99
  6. Step 6: Final answer
    x = 30,956.75

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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.