Home / 52,279.15-72,145.55-28,405.89

Finding the Fourth Proportional to 52,279.15, 72,145.55 and 28,405.89

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Solution

The fourth proportional to 52,279.15, 72,145.55 and 28,405.89 is: 39,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,279.15 : 72,145.55 = 28,405.89 : x
  2. Step 2: Convert to fraction form
    52,279.15/72,145.55 = 28,405.89/x
  3. Step 3: Cross multiply
    52,279.15x = 72,145.55 × 28,405.89
  4. Step 4: Simplify right side
    52,279.15x = 2,049,358,557.29
  5. Step 5: Solve for x
    x = 2,049,358,557.29/52,279.15
  6. Step 6: Final answer
    x = 39,200.30

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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.