Home / 48,079.86-72,145.60-20,019.28

Finding the Fourth Proportional to 48,079.86, 72,145.60 and 20,019.28

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Solution

The fourth proportional to 48,079.86, 72,145.60 and 20,019.28 is: 30,039.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,079.86 : 72,145.60 = 20,019.28 : x
  2. Step 2: Convert to fraction form
    48,079.86/72,145.60 = 20,019.28/x
  3. Step 3: Cross multiply
    48,079.86x = 72,145.60 × 20,019.28
  4. Step 4: Simplify right side
    48,079.86x = 1,444,302,967.17
  5. Step 5: Solve for x
    x = 1,444,302,967.17/48,079.86
  6. Step 6: Final answer
    x = 30,039.67

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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.