Home / 72,315.15-108,472.73-25,561.95

Finding the Fourth Proportional to 72,315.15, 108,472.73 and 25,561.95

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Solution

The fourth proportional to 72,315.15, 108,472.73 and 25,561.95 is: 38,342.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,315.15 : 108,472.73 = 25,561.95 : x
  2. Step 2: Convert to fraction form
    72,315.15/108,472.73 = 25,561.95/x
  3. Step 3: Cross multiply
    72,315.15x = 108,472.73 × 25,561.95
  4. Step 4: Simplify right side
    72,315.15x = 2,772,774,372.81
  5. Step 5: Solve for x
    x = 2,772,774,372.81/72,315.15
  6. Step 6: Final answer
    x = 38,342.93

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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.