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Finding the Fourth Proportional to 52,839.03, 72,987.72 and 39,386.91

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Solution

The fourth proportional to 52,839.03, 72,987.72 and 39,386.91 is: 54,406.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,839.03 : 72,987.72 = 39,386.91 : x
  2. Step 2: Convert to fraction form
    52,839.03/72,987.72 = 39,386.91/x
  3. Step 3: Cross multiply
    52,839.03x = 72,987.72 × 39,386.91
  4. Step 4: Simplify right side
    52,839.03x = 2,874,760,758.75
  5. Step 5: Solve for x
    x = 2,874,760,758.75/52,839.03
  6. Step 6: Final answer
    x = 54,406.01

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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.