Home / 52,278.89-72,143.83-28,405.74

Finding the Fourth Proportional to 52,278.89, 72,143.83 and 28,405.74

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Solution

The fourth proportional to 52,278.89, 72,143.83 and 28,405.74 is: 39,199.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,278.89 : 72,143.83 = 28,405.74 : x
  2. Step 2: Convert to fraction form
    52,278.89/72,143.83 = 28,405.74/x
  3. Step 3: Cross multiply
    52,278.89x = 72,143.83 × 28,405.74
  4. Step 4: Simplify right side
    52,278.89x = 2,049,298,516.87
  5. Step 5: Solve for x
    x = 2,049,298,516.87/52,278.89
  6. Step 6: Final answer
    x = 39,199.35

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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.