Home / 52,812.36-72,878.40-28,934.46

Finding the Fourth Proportional to 52,812.36, 72,878.40 and 28,934.46

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Solution

The fourth proportional to 52,812.36, 72,878.40 and 28,934.46 is: 39,928.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,812.36 : 72,878.40 = 28,934.46 : x
  2. Step 2: Convert to fraction form
    52,812.36/72,878.40 = 28,934.46/x
  3. Step 3: Cross multiply
    52,812.36x = 72,878.40 × 28,934.46
  4. Step 4: Simplify right side
    52,812.36x = 2,108,697,149.66
  5. Step 5: Solve for x
    x = 2,108,697,149.66/52,812.36
  6. Step 6: Final answer
    x = 39,928.10

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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.