Home / 50,803.81-70,143.51-31,712.66

Finding the Fourth Proportional to 50,803.81, 70,143.51 and 31,712.66

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Solution

The fourth proportional to 50,803.81, 70,143.51 and 31,712.66 is: 43,784.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,803.81 : 70,143.51 = 31,712.66 : x
  2. Step 2: Convert to fraction form
    50,803.81/70,143.51 = 31,712.66/x
  3. Step 3: Cross multiply
    50,803.81x = 70,143.51 × 31,712.66
  4. Step 4: Simplify right side
    50,803.81x = 2,224,437,125.27
  5. Step 5: Solve for x
    x = 2,224,437,125.27/50,803.81
  6. Step 6: Final answer
    x = 43,784.85

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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.