Home / 79,298.72-109,438.03-45,306.48

Finding the Fourth Proportional to 79,298.72, 109,438.03 and 45,306.48

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Solution

The fourth proportional to 79,298.72, 109,438.03 and 45,306.48 is: 62,526.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,298.72 : 109,438.03 = 45,306.48 : x
  2. Step 2: Convert to fraction form
    79,298.72/109,438.03 = 45,306.48/x
  3. Step 3: Cross multiply
    79,298.72x = 109,438.03 × 45,306.48
  4. Step 4: Simplify right side
    79,298.72x = 4,958,251,612.27
  5. Step 5: Solve for x
    x = 4,958,251,612.27/79,298.72
  6. Step 6: Final answer
    x = 62,526.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.