Home / 52,690.80-72,714.96-28,818.12

Finding the Fourth Proportional to 52,690.80, 72,714.96 and 28,818.12

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Solution

The fourth proportional to 52,690.80, 72,714.96 and 28,818.12 is: 39,769.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,690.80 : 72,714.96 = 28,818.12 : x
  2. Step 2: Convert to fraction form
    52,690.80/72,714.96 = 28,818.12/x
  3. Step 3: Cross multiply
    52,690.80x = 72,714.96 × 28,818.12
  4. Step 4: Simplify right side
    52,690.80x = 2,095,508,443.08
  5. Step 5: Solve for x
    x = 2,095,508,443.08/52,690.80
  6. Step 6: Final answer
    x = 39,769.91

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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.