Home / 90,948.45-136,423.01-30,982.96

Finding the Fourth Proportional to 90,948.45, 136,423.01 and 30,982.96

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Solution

The fourth proportional to 90,948.45, 136,423.01 and 30,982.96 is: 46,474.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,948.45 : 136,423.01 = 30,982.96 : x
  2. Step 2: Convert to fraction form
    90,948.45/136,423.01 = 30,982.96/x
  3. Step 3: Cross multiply
    90,948.45x = 136,423.01 × 30,982.96
  4. Step 4: Simplify right side
    90,948.45x = 4,226,788,055.38
  5. Step 5: Solve for x
    x = 4,226,788,055.38/90,948.45
  6. Step 6: Final answer
    x = 46,474.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.