Home / 48,839.72-67,408.64-28,703.12

Finding the Fourth Proportional to 48,839.72, 67,408.64 and 28,703.12

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Solution

The fourth proportional to 48,839.72, 67,408.64 and 28,703.12 is: 39,616.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,839.72 : 67,408.64 = 28,703.12 : x
  2. Step 2: Convert to fraction form
    48,839.72/67,408.64 = 28,703.12/x
  3. Step 3: Cross multiply
    48,839.72x = 67,408.64 × 28,703.12
  4. Step 4: Simplify right side
    48,839.72x = 1,934,838,282.96
  5. Step 5: Solve for x
    x = 1,934,838,282.96/48,839.72
  6. Step 6: Final answer
    x = 39,616.08

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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.