Home / 40,538.20-60,807.30-28,072.30

Finding the Fourth Proportional to 40,538.20, 60,807.30 and 28,072.30

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Solution

The fourth proportional to 40,538.20, 60,807.30 and 28,072.30 is: 42,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,538.20 : 60,807.30 = 28,072.30 : x
  2. Step 2: Convert to fraction form
    40,538.20/60,807.30 = 28,072.30/x
  3. Step 3: Cross multiply
    40,538.20x = 60,807.30 × 28,072.30
  4. Step 4: Simplify right side
    40,538.20x = 1,707,000,767.79
  5. Step 5: Solve for x
    x = 1,707,000,767.79/40,538.20
  6. Step 6: Final answer
    x = 42,108.45

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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.