Home / 49,685.12-68,557.92-28,173.68

Finding the Fourth Proportional to 49,685.12, 68,557.92 and 28,173.68

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Solution

The fourth proportional to 49,685.12, 68,557.92 and 28,173.68 is: 38,875.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,685.12 : 68,557.92 = 28,173.68 : x
  2. Step 2: Convert to fraction form
    49,685.12/68,557.92 = 28,173.68/x
  3. Step 3: Cross multiply
    49,685.12x = 68,557.92 × 28,173.68
  4. Step 4: Simplify right side
    49,685.12x = 1,931,528,899.55
  5. Step 5: Solve for x
    x = 1,931,528,899.55/49,685.12
  6. Step 6: Final answer
    x = 38,875.40

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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.