Home / 51,211.18-70,617.54-40,438.18

Finding the Fourth Proportional to 51,211.18, 70,617.54 and 40,438.18

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Solution

The fourth proportional to 51,211.18, 70,617.54 and 40,438.18 is: 55,762.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,211.18 : 70,617.54 = 40,438.18 : x
  2. Step 2: Convert to fraction form
    51,211.18/70,617.54 = 40,438.18/x
  3. Step 3: Cross multiply
    51,211.18x = 70,617.54 × 40,438.18
  4. Step 4: Simplify right side
    51,211.18x = 2,855,644,793.68
  5. Step 5: Solve for x
    x = 2,855,644,793.68/51,211.18
  6. Step 6: Final answer
    x = 55,762.14

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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.