Home / 52,405.12-72,316.80-28,531.92

Finding the Fourth Proportional to 52,405.12, 72,316.80 and 28,531.92

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Solution

The fourth proportional to 52,405.12, 72,316.80 and 28,531.92 is: 39,372.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,405.12 : 72,316.80 = 28,531.92 : x
  2. Step 2: Convert to fraction form
    52,405.12/72,316.80 = 28,531.92/x
  3. Step 3: Cross multiply
    52,405.12x = 72,316.80 × 28,531.92
  4. Step 4: Simplify right side
    52,405.12x = 2,063,337,152.26
  5. Step 5: Solve for x
    x = 2,063,337,152.26/52,405.12
  6. Step 6: Final answer
    x = 39,372.82

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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.