Home / 52,690.30-72,708.64-28,816.16

Finding the Fourth Proportional to 52,690.30, 72,708.64 and 28,816.16

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Solution

The fourth proportional to 52,690.30, 72,708.64 and 28,816.16 is: 39,764.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,690.30 : 72,708.64 = 28,816.16 : x
  2. Step 2: Convert to fraction form
    52,690.30/72,708.64 = 28,816.16/x
  3. Step 3: Cross multiply
    52,690.30x = 72,708.64 × 28,816.16
  4. Step 4: Simplify right side
    52,690.30x = 2,095,183,368.04
  5. Step 5: Solve for x
    x = 2,095,183,368.04/52,690.30
  6. Step 6: Final answer
    x = 39,764.12

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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.