Home / 51,143.04-70,557.12-31,282.56

Finding the Fourth Proportional to 51,143.04, 70,557.12 and 31,282.56

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Solution

The fourth proportional to 51,143.04, 70,557.12 and 31,282.56 is: 43,157.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,143.04 : 70,557.12 = 31,282.56 : x
  2. Step 2: Convert to fraction form
    51,143.04/70,557.12 = 31,282.56/x
  3. Step 3: Cross multiply
    51,143.04x = 70,557.12 × 31,282.56
  4. Step 4: Simplify right side
    51,143.04x = 2,207,207,339.83
  5. Step 5: Solve for x
    x = 2,207,207,339.83/51,143.04
  6. Step 6: Final answer
    x = 43,157.53

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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.