Home / 52,278.50-72,144.67-28,405.17

Finding the Fourth Proportional to 52,278.50, 72,144.67 and 28,405.17

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Solution

The fourth proportional to 52,278.50, 72,144.67 and 28,405.17 is: 39,199.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,278.50 : 72,144.67 = 28,405.17 : x
  2. Step 2: Convert to fraction form
    52,278.50/72,144.67 = 28,405.17/x
  3. Step 3: Cross multiply
    52,278.50x = 72,144.67 × 28,405.17
  4. Step 4: Simplify right side
    52,278.50x = 2,049,281,615.94
  5. Step 5: Solve for x
    x = 2,049,281,615.94/52,278.50
  6. Step 6: Final answer
    x = 39,199.32

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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.