Home / 66,988.06-92,443.56-40,146.14

Finding the Fourth Proportional to 66,988.06, 92,443.56 and 40,146.14

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Solution

The fourth proportional to 66,988.06, 92,443.56 and 40,146.14 is: 55,401.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,988.06 : 92,443.56 = 40,146.14 : x
  2. Step 2: Convert to fraction form
    66,988.06/92,443.56 = 40,146.14/x
  3. Step 3: Cross multiply
    66,988.06x = 92,443.56 × 40,146.14
  4. Step 4: Simplify right side
    66,988.06x = 3,711,252,182.42
  5. Step 5: Solve for x
    x = 3,711,252,182.42/66,988.06
  6. Step 6: Final answer
    x = 55,401.70

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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.