Home / 51,041.53-70,438.76-30,902.05

Finding the Fourth Proportional to 51,041.53, 70,438.76 and 30,902.05

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Solution

The fourth proportional to 51,041.53, 70,438.76 and 30,902.05 is: 42,645.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,041.53 : 70,438.76 = 30,902.05 : x
  2. Step 2: Convert to fraction form
    51,041.53/70,438.76 = 30,902.05/x
  3. Step 3: Cross multiply
    51,041.53x = 70,438.76 × 30,902.05
  4. Step 4: Simplify right side
    51,041.53x = 2,176,702,083.46
  5. Step 5: Solve for x
    x = 2,176,702,083.46/51,041.53
  6. Step 6: Final answer
    x = 42,645.71

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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.