Home / 59,720.40-89,575.20-20,278.80

Finding the Fourth Proportional to 59,720.40, 89,575.20 and 20,278.80

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Solution

The fourth proportional to 59,720.40, 89,575.20 and 20,278.80 is: 30,416.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,720.40 : 89,575.20 = 20,278.80 : x
  2. Step 2: Convert to fraction form
    59,720.40/89,575.20 = 20,278.80/x
  3. Step 3: Cross multiply
    59,720.40x = 89,575.20 × 20,278.80
  4. Step 4: Simplify right side
    59,720.40x = 1,816,477,565.76
  5. Step 5: Solve for x
    x = 1,816,477,565.76/59,720.40
  6. Step 6: Final answer
    x = 30,416.37

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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.