Home / 72,903.23-109,335.21-30,783.59

Finding the Fourth Proportional to 72,903.23, 109,335.21 and 30,783.59

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Solution

The fourth proportional to 72,903.23, 109,335.21 and 30,783.59 is: 46,167.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,903.23 : 109,335.21 = 30,783.59 : x
  2. Step 2: Convert to fraction form
    72,903.23/109,335.21 = 30,783.59/x
  3. Step 3: Cross multiply
    72,903.23x = 109,335.21 × 30,783.59
  4. Step 4: Simplify right side
    72,903.23x = 3,365,730,277.20
  5. Step 5: Solve for x
    x = 3,365,730,277.20/72,903.23
  6. Step 6: Final answer
    x = 46,167.09

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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.