Home / 72,586.95-100,166.59-40,323.66

Finding the Fourth Proportional to 72,586.95, 100,166.59 and 40,323.66

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Solution

The fourth proportional to 72,586.95, 100,166.59 and 40,323.66 is: 55,644.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,586.95 : 100,166.59 = 40,323.66 : x
  2. Step 2: Convert to fraction form
    72,586.95/100,166.59 = 40,323.66/x
  3. Step 3: Cross multiply
    72,586.95x = 100,166.59 × 40,323.66
  4. Step 4: Simplify right side
    72,586.95x = 4,039,083,193.30
  5. Step 5: Solve for x
    x = 4,039,083,193.30/72,586.95
  6. Step 6: Final answer
    x = 55,644.76

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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.