Home / 92,821.56-128,080.62-55,110.84

Finding the Fourth Proportional to 92,821.56, 128,080.62 and 55,110.84

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Solution

The fourth proportional to 92,821.56, 128,080.62 and 55,110.84 is: 76,045.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,821.56 : 128,080.62 = 55,110.84 : x
  2. Step 2: Convert to fraction form
    92,821.56/128,080.62 = 55,110.84/x
  3. Step 3: Cross multiply
    92,821.56x = 128,080.62 × 55,110.84
  4. Step 4: Simplify right side
    92,821.56x = 7,058,630,555.92
  5. Step 5: Solve for x
    x = 7,058,630,555.92/92,821.56
  6. Step 6: Final answer
    x = 76,045.16

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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.