Home / 52,405.31-72,319.21-28,531.77

Finding the Fourth Proportional to 52,405.31, 72,319.21 and 28,531.77

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Solution

The fourth proportional to 52,405.31, 72,319.21 and 28,531.77 is: 39,373.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,405.31 : 72,319.21 = 28,531.77 : x
  2. Step 2: Convert to fraction form
    52,405.31/72,319.21 = 28,531.77/x
  3. Step 3: Cross multiply
    52,405.31x = 72,319.21 × 28,531.77
  4. Step 4: Simplify right side
    52,405.31x = 2,063,395,066.30
  5. Step 5: Solve for x
    x = 2,063,395,066.30/52,405.31
  6. Step 6: Final answer
    x = 39,373.78

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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.