Home / 48,780.04-67,315.08-28,636.60

Finding the Fourth Proportional to 48,780.04, 67,315.08 and 28,636.60

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Solution

The fourth proportional to 48,780.04, 67,315.08 and 28,636.60 is: 39,517.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,780.04 : 67,315.08 = 28,636.60 : x
  2. Step 2: Convert to fraction form
    48,780.04/67,315.08 = 28,636.60/x
  3. Step 3: Cross multiply
    48,780.04x = 67,315.08 × 28,636.60
  4. Step 4: Simplify right side
    48,780.04x = 1,927,675,019.93
  5. Step 5: Solve for x
    x = 1,927,675,019.93/48,780.04
  6. Step 6: Final answer
    x = 39,517.70

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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.