Home / 52,279.64-72,144.29-28,405.80

Finding the Fourth Proportional to 52,279.64, 72,144.29 and 28,405.80

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Solution

The fourth proportional to 52,279.64, 72,144.29 and 28,405.80 is: 39,199.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,279.64 : 72,144.29 = 28,405.80 : x
  2. Step 2: Convert to fraction form
    52,279.64/72,144.29 = 28,405.80/x
  3. Step 3: Cross multiply
    52,279.64x = 72,144.29 × 28,405.80
  4. Step 4: Simplify right side
    52,279.64x = 2,049,316,343.90
  5. Step 5: Solve for x
    x = 2,049,316,343.90/52,279.64
  6. Step 6: Final answer
    x = 39,199.13

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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.