Home / 52,521.12-72,479.13-28,647.78

Finding the Fourth Proportional to 52,521.12, 72,479.13 and 28,647.78

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Solution

The fourth proportional to 52,521.12, 72,479.13 and 28,647.78 is: 39,533.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,521.12 : 72,479.13 = 28,647.78 : x
  2. Step 2: Convert to fraction form
    52,521.12/72,479.13 = 28,647.78/x
  3. Step 3: Cross multiply
    52,521.12x = 72,479.13 × 28,647.78
  4. Step 4: Simplify right side
    52,521.12x = 2,076,366,170.83
  5. Step 5: Solve for x
    x = 2,076,366,170.83/52,521.12
  6. Step 6: Final answer
    x = 39,533.93

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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.