Home / 53,931.77-80,934.11-18,871.73

Finding the Fourth Proportional to 53,931.77, 80,934.11 and 18,871.73

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Solution

The fourth proportional to 53,931.77, 80,934.11 and 18,871.73 is: 28,320.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,931.77 : 80,934.11 = 18,871.73 : x
  2. Step 2: Convert to fraction form
    53,931.77/80,934.11 = 18,871.73/x
  3. Step 3: Cross multiply
    53,931.77x = 80,934.11 × 18,871.73
  4. Step 4: Simplify right side
    53,931.77x = 1,527,366,850.46
  5. Step 5: Solve for x
    x = 1,527,366,850.46/53,931.77
  6. Step 6: Final answer
    x = 28,320.35

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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.