Home / 68,988.18-95,186.16-42,120.89

Finding the Fourth Proportional to 68,988.18, 95,186.16 and 42,120.89

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Solution

The fourth proportional to 68,988.18, 95,186.16 and 42,120.89 is: 58,116.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,988.18 : 95,186.16 = 42,120.89 : x
  2. Step 2: Convert to fraction form
    68,988.18/95,186.16 = 42,120.89/x
  3. Step 3: Cross multiply
    68,988.18x = 95,186.16 × 42,120.89
  4. Step 4: Simplify right side
    68,988.18x = 4,009,325,298.95
  5. Step 5: Solve for x
    x = 4,009,325,298.95/68,988.18
  6. Step 6: Final answer
    x = 58,116.12

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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.