Home / 42,816.20-64,150.47-28,381.67

Finding the Fourth Proportional to 42,816.20, 64,150.47 and 28,381.67

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Solution

The fourth proportional to 42,816.20, 64,150.47 and 28,381.67 is: 42,523.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,816.20 : 64,150.47 = 28,381.67 : x
  2. Step 2: Convert to fraction form
    42,816.20/64,150.47 = 28,381.67/x
  3. Step 3: Cross multiply
    42,816.20x = 64,150.47 × 28,381.67
  4. Step 4: Simplify right side
    42,816.20x = 1,820,697,149.13
  5. Step 5: Solve for x
    x = 1,820,697,149.13/42,816.20
  6. Step 6: Final answer
    x = 42,523.56

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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.