Home / 52,405.36-72,321.18-28,532.40

Finding the Fourth Proportional to 52,405.36, 72,321.18 and 28,532.40

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Solution

The fourth proportional to 52,405.36, 72,321.18 and 28,532.40 is: 39,375.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,405.36 : 72,321.18 = 28,532.40 : x
  2. Step 2: Convert to fraction form
    52,405.36/72,321.18 = 28,532.40/x
  3. Step 3: Cross multiply
    52,405.36x = 72,321.18 × 28,532.40
  4. Step 4: Simplify right side
    52,405.36x = 2,063,496,836.23
  5. Step 5: Solve for x
    x = 2,063,496,836.23/52,405.36
  6. Step 6: Final answer
    x = 39,375.68

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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.