Home / 52,690.32-72,712.49-28,491.12

Finding the Fourth Proportional to 52,690.32, 72,712.49 and 28,491.12

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Solution

The fourth proportional to 52,690.32, 72,712.49 and 28,491.12 is: 39,317.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,690.32 : 72,712.49 = 28,491.12 : x
  2. Step 2: Convert to fraction form
    52,690.32/72,712.49 = 28,491.12/x
  3. Step 3: Cross multiply
    52,690.32x = 72,712.49 × 28,491.12
  4. Step 4: Simplify right side
    52,690.32x = 2,071,660,242.47
  5. Step 5: Solve for x
    x = 2,071,660,242.47/52,690.32
  6. Step 6: Final answer
    x = 39,317.66

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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.