Home / 52,890.12-72,988-29,017.80

Finding the Fourth Proportional to 52,890.12, 72,988 and 29,017.80

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Solution

The fourth proportional to 52,890.12, 72,988 and 29,017.80 is: 40,044.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,890.12 : 72,988 = 29,017.80 : x
  2. Step 2: Convert to fraction form
    52,890.12/72,988 = 29,017.80/x
  3. Step 3: Cross multiply
    52,890.12x = 72,988 × 29,017.80
  4. Step 4: Simplify right side
    52,890.12x = 2,117,951,186.40
  5. Step 5: Solve for x
    x = 2,117,951,186.40/52,890.12
  6. Step 6: Final answer
    x = 40,044.36

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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.