Home / 48,767.82-67,328.60-30,878.16

Finding the Fourth Proportional to 48,767.82, 67,328.60 and 30,878.16

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Solution

The fourth proportional to 48,767.82, 67,328.60 and 30,878.16 is: 42,630.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,767.82 : 67,328.60 = 30,878.16 : x
  2. Step 2: Convert to fraction form
    48,767.82/67,328.60 = 30,878.16/x
  3. Step 3: Cross multiply
    48,767.82x = 67,328.60 × 30,878.16
  4. Step 4: Simplify right side
    48,767.82x = 2,078,983,128.99
  5. Step 5: Solve for x
    x = 2,078,983,128.99/48,767.82
  6. Step 6: Final answer
    x = 42,630.22

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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.