Home / 52,405.90-72,317.22-28,531.15

Finding the Fourth Proportional to 52,405.90, 72,317.22 and 28,531.15

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Solution

The fourth proportional to 52,405.90, 72,317.22 and 28,531.15 is: 39,371.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,405.90 : 72,317.22 = 28,531.15 : x
  2. Step 2: Convert to fraction form
    52,405.90/72,317.22 = 28,531.15/x
  3. Step 3: Cross multiply
    52,405.90x = 72,317.22 × 28,531.15
  4. Step 4: Simplify right side
    52,405.90x = 2,063,293,451.40
  5. Step 5: Solve for x
    x = 2,063,293,451.40/52,405.90
  6. Step 6: Final answer
    x = 39,371.40

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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.