Home / 48,715.12-67,238.10-28,578.47

Finding the Fourth Proportional to 48,715.12, 67,238.10 and 28,578.47

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Solution

The fourth proportional to 48,715.12, 67,238.10 and 28,578.47 is: 39,444.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,715.12 : 67,238.10 = 28,578.47 : x
  2. Step 2: Convert to fraction form
    48,715.12/67,238.10 = 28,578.47/x
  3. Step 3: Cross multiply
    48,715.12x = 67,238.10 × 28,578.47
  4. Step 4: Simplify right side
    48,715.12x = 1,921,562,065.73
  5. Step 5: Solve for x
    x = 1,921,562,065.73/48,715.12
  6. Step 6: Final answer
    x = 39,444.88

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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.