Home / 72,440.68-108,672.54-30,888.04

Finding the Fourth Proportional to 72,440.68, 108,672.54 and 30,888.04

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Solution

The fourth proportional to 72,440.68, 108,672.54 and 30,888.04 is: 46,336.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,440.68 : 108,672.54 = 30,888.04 : x
  2. Step 2: Convert to fraction form
    72,440.68/108,672.54 = 30,888.04/x
  3. Step 3: Cross multiply
    72,440.68x = 108,672.54 × 30,888.04
  4. Step 4: Simplify right side
    72,440.68x = 3,356,681,762.42
  5. Step 5: Solve for x
    x = 3,356,681,762.42/72,440.68
  6. Step 6: Final answer
    x = 46,336.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.